Index to observations received from ARPS
members
Observations received FROM ARPS MEMBERS
August/September 2008
Peter comments; The weather was very poor at Great Shefford
in July and August. With 25 hours at the telescope, July provided less than
half the observing hours logged for that month in any of the last three years.
August was officially the cloudiest August in the
However, the night of August 3/4th provided the
opportunity to recover three NEOs not seen since their discovery apparitions
and a somewhat unusual confirmation of a NEO Confirmation Page (NEOCP) object.
Aten 2004 SB56 had sped northwards after conjunction
with the Sun in July and in the 10 days before recovery had brightened 3
magnitudes and increased elongation from 35 to 72°. With an uncertainty area on
the sky of 14' it was picked up only 3' from prediction at mag +16.7 and about
6° from the North Pole, a relatively easy recovery.
Apollo 2007 RT12 had an uncertainty of about 1° and
at mag +20.0 was a potentially difficult object to recover, just 1° east of
Alpha Cep, deep in the Milky Way. Fortunately it was only 8' from prediction
and not involved with any field stars during the time it was imaged. With an
absolute magnitude of +23.9, equating to an estimated diameter of 30-95 meters,
there have only been 10 other NEOs recovered at a second opposition that are
smaller than 2007 RT12. Included in this set are the Earth co-orbital companion
2002 AA29 and the tiny 2006 RH120 that was temporarily captured in Earth orbit
during 2006 & 2007. My thanks to Sergio Foglia for providing a list of
small NEOs seen at more than one apparition.
The third object was 2001 QL153, an Amor that had
been observed for about 4 months and had not been seen since January 2002. It
too had an uncertainty of about 1° and predicted to be mag +20.5 and could have
posed a problem to pick up. It was in a less crowded field than 2007 RT12 and
after more than six years since last being observed was recovered only 9' from
prediction.
A LINEAR discovery put on the NEOCP on August 3rd
turned out to be something of a puzzle. 2008 PG1 was observed from
04209 C2008 08 22.88303 20 47 41.73 -27 15
32.1 J95 = MBA
04209 C2008 08 22.88964 20 47 41.39 -27 15
30.5 15.7 R J95
04958 C2008 08 15.08119 04 01 11.36 +25 15
57.9 J95 = MBA
04958 C2008 08 15.08497 04 01 11.59 +25 15
58.6 J95
04958 C2008 08 15.08872 04 01 11.84 +25 15
58.9 17.3 R J95
05134 C2008 08 22.87840 20 48 38.04 -27 06
29.5 J95 = MBA
05134 C2008 08 22.88303 20 48 37.82 -27 06
30.5 J95
05134 C2008 08 22.88964 20 48 37.53 -27 06
32.4 15.9 R J95
17354 C2008 08 04.09013 22 43 04.40 -07 50
34.2 J95 = MBA
17354 C2008 08 04.10314 22 43 03.91 -07 50
37.7 18.4 R J95
25649 C2008 08 24.88579 21 05 14.23 -04 38
11.7 J95 = MBA
25649 C2008 08 24.89229 21 05 13.97 -04 38
13.2 J95
25649 C2008 08 24.90034 21 05 13.63 -04 38
15.4 17.9 R J95
28135 C2008 08 15.08119 04 00 43.87 +25 29
02.0 J95 = MBA
28135 C2008 08 15.08497 04 00 44.18 +25 29
03.5 J95
28135 C2008 08 15.08872 04 00 44.47 +25 29
04.8 19.2 R J95
66140 C2008 08 24.88579 21 04 33.50 -04 33
10.9 J95 = MBA
66140 C2008 08 24.89229 21 04 33.22 -04 33
12.6 J95
66140 C2008 08 24.90034 21 04 32.89 -04 33
15.1 18.0 R J95
89898 C2008 08 02.99937 22 45 38.85 -07 30
28.9 J95 = MBA
89898 C2008 08 03.01299 22 45 38.38 -07 30
30.2 J95
89898 C2008 08 03.03181 22 45 38.03 -07 30
32.4 19.9 R J95
B8242 C2008 08 04.09013 22 43 26.88 -07 49
04.1 J95 = MBA
B8242 C2008 08 04.10314 22 43 26.32 -07 49
08.1 18.9 R J95
C1921 C2008 08 02.99937 22 45 44.36 -07 23
27.0 J95 = MBA
C1921 C2008 08 03.03181 22 45 43.38 -07 23
33.4 19.5 R J95
C6303 C2008 08 04.09013 22 42 22.52 -07 48
33.2 J95 = MBA
C6303 C2008 08 04.10314 22 42 21.93 -07 48
33.1 19.8 R J95
F4441 C2008 08 12.97212 22 18 05.93 -11 03
51.7 J95 = MBA
F4441 C2008 08 13.00223 22 18 04.38 -11 04
03.6 19.6 R J95
K00D20Z
C2008 08 02.93553 21 27 59.69 -17 09 01.9 J95 = MBA
K00D20Z
C2008 08 02.93942 21 27 59.49 -17 09 01.3 J95
K00D20Z
C2008 08 02.94329 21 27 59.27 -17 09 02.8 19.0 R J95
K01QF3L
C2008 08 04.11299 22 11 36.74 +08 21 20.5 J95 = Amor = Recovery at
2nd opposition. Found 9' from prediction
K01QF3L
C2008 08 04.11746 22 11 36.65 +08 21 16.7 20.6 R J95
K01QF3L IC2008 08 09.07621 22 10 40.65 +06
57 07.1 J95
K01QF3L IC2008 08
09.10060 22 10 40.19 +06 56 38.8
19.4 R J95
K01SA4E
C2008 08 02.93553 21 27 21.54 -17 13 25.6 J95 = MBA
K01SA4E
C2008 08 02.93942 21 27 21.31 -17 13 27.6 J95
K01SA4E
C2008 08 02.94329 21 27 21.02 -17 13 26.5 19.3 R J95
K01W17R C2008 08 31.93510 22 42 34.69 +04 16
21.6 J95 = MBA
K01W17R
C2008 08 31.94079 22 42 34.40 +04 16 19.5 J95
K01W17R
C2008 08 31.94597 22 42 34.14 +04 16 17.8 18.7 R J95
K03SJ5W
C2008 08 31.93510 22 42 41.23 +04 15 17.3 J95 = MBA
K03SJ5W
C2008 08 31.94079 22 42 40.97 +04 15 15.8 J95
K03SJ5W
C2008 08 31.94597 22 42 40.73 +04 15 14.6 19.3 R J95
K03SS9E C2008 08 30.94076 21 58 56.32 -08 36
22.8 J95 = MBA
K03SS9E
C2008 08 30.98173 21 58 54.66 -08 36 42.8 J95
K03SS9E C2008 08 30.99701 21 58 54.01 -08 36
50.7 19.4 R J95
K03T03Q
C2008 08 30.90999 21 44 26.48 -15 37 09.2 J95 = MBA
K03T03Q
C2008 08 30.92462 21 44 25.75 -15 37 09.9 J95
K03T03Q
C2008 08 30.95940 21 44 23.86 -15 37 13.3 20.1 R J95
K04B41O C2008 08 14.03327 04 00 23.44 +48 39
39.5 J95 = Apollo
K04B41O
C2008 08 14.12744 04 00 34.52 +48 42 41.4 J95
K04S56B C2008 08 03.94986 03 58 13.06 +84 23
52.3 J95 = Aten =
Recovery at 2nd opposition. Found 3' from prediction
K04S56B
C2008 08 03.95075 03 58 08.64 +84 24 04.1 J95
K04S56B
C2008 08 03.95159 03 58 04.70 +84 24 14.5 16.7 R J95
K04S56B
C2008 08 04.92020 01 24 30.83 +87 00 16.6 J95
K04S56B
C2008 08 04.92316 01 23 44.29 +87 00 32.7 J95
K04S56B
C2008 08 04.92422 01 23 27.72 +87 00 38.4 J95
K04S56B
C2008 08 04.92545 01 23 08.19 +87 00 45.0 J95
K04S56B
C2008 08 04.92659 01 22 50.37 +87 00 51.0 16.9 R
J95
K04V64A bC2008 08 14.11206 07 09 30.40 +46
39 48.7 J95 = MBA
K04V64A bC2008 08 14.14592 07 09 19.62 +46
40 31.7 18.5 R J95
K05W57R
C2008 08 30.94076 21 59 30.59 -08 28 35.7 J95 = MBA
K05W57R
C2008 08 30.98173 21 59 28.47 -08 28 53.3 J95
K05W57R
C2008 08 30.99701 21 59 27.59 -08 28 59.5 20.3 R J95
K05XB7B
C2008 08 13.98634 21 20 37.87 -17 15 08.2 J95 = MBA
K05XB7B
C2008 08 13.99472 21 20 37.35 -17 15 09.0 20.0 R J95
K05X03Q
C2008 08 30.94076 21 59 55.54 -08 36 03.6 J95 = GS88VC = 2008 QE20
= MBA = GS designation, subsequently linked with earlier designated object
K05X03Q C2008 08 30.98173 21 59 53.22 -08 36
07.0 J95
K05X03Q
C2008 08 30.99701 21 59 52.31 -08 36 08.2 18.6 R J95
K05X03Q IC2008 08 31.05836 21 59 48.83 -08
36 12.6 18.3 R J95
K05X03Q
C2008 08 31.92021 21 59 02.13 -08 37 15.3 J95
K05X03Q
C2008 08 31.92439 21 59 01.93 -08 37 15.8 J95
K05X03Q C2008 08 31.92856 21 59 01.68 -08 37
15.7 18.6 R J95
K06A93X
C2008 08 12.97212 22 17 26.08 -10 57 14.8 J95 = MBA
K06A93X C2008 08 13.00223 22 17 24.72 -10 57
18.3 20.1 R J95
K06D81Y
C2008 08 04.09013 22 42 45.20 -07 51 53.9 J95 = MBA
K06D81Y
C2008 08 04.10314 22 42 44.71 -07 51 56.4 20.8 R J95
K07B65J
C2008 08 31.00764 23 27 49.46 -08 02 09.3 J95 = MBA
K07B65J IC2008 08 31.01286 23 27 49.19 -08
02 11.9 19.7 R J95
K07D25K C2008 08 02.99937 22 45 32.60 -07 26
09.6 J95 = MBA
K07D25K
C2008 08 03.01299 22 45 31.99 -07 26 13.7 J95
K07D25K C2008 08 03.03181 22 45 31.23 -07 26
16.1 20.6 R J95
K07E89F
C2008 08 30.90999 21 44 39.31 -15 34 43.3 J95 = MBA
K07E89F
C2008 08 30.92462 21 44 38.57 -15 34 45.8 J95
K07E89F
C2008 08 30.95940 21 44 36.84 -15 34 56.6 20.3 R J95
K07R12T C2008 08 03.93616 21 26 58.38 +62 36
44.0 J95 = Apollo =
Recovery at 2nd opposition. Found 8' from prediction
K07R12T
C2008 08 03.93849 21 26 57.76 +62 36 16.7 J95
K07R12T
C2008 08 03.94081 21 26 57.15 +62 35 50.3 20.1 R J95
K07R12T IC2008 08
07.94478 21 19 03.78 +48 42 37.5 J95
K07R12T IC2008 08 07.95988 21 19 01.63 +48
39 27.8 J95
K07R12T
C2008 08 12.87538 21 14 14.67 +31 59 07.9 J95
K07R12T
C2008 08 12.88420 21 14 14.01 +31 57 29.2 J95
K07R12T
C2008 08 12.89675 21 14 13.00 +31 55 08.2 J95
K07R12T
C2008 08 12.90759 21 14 12.01 +31 53 06.5 19.7 R J95
K08O00O bC2008 08
12.93628 20 22 43.45 -17 00 26.8 J95 = Apollo
K08O00O bC2008 08 12.94893 20 22 42.29 -17
00 25.6 19.8 R J95
K08O09C bC2008 08 02.89945 20 54 59.66 -15
55 54.0 J95 =
8P56DB7 = Apollo
K08O09C bC2008 08 02.90506 20 54 54.82 -15
54 22.0 J95
K08O09C bC2008 08 02.91064 20 54 50.03 -15
52 47.2 18.3 R J95
K08O10N
C2008 08 01.05987 21 27 49.16 -09 14 19.6 J95 = BK67081 = Apollo
K08O10N
C2008 08 01.06275 21 27 50.13 -09 14 40.9 J95
K08O10N
C2008 08 01.06823 21 27 52.02 -09 15 21.3 18.4 R J95
K08O10N
C2008 08 02.97316 21 41 45.30 -13 37 01.9 J95
K08O10N
C2008 08 02.97632 21 41 46.71 -13 37 31.8 J95
K08O10N
C2008 08 02.97948 21 41 48.10 -13 38 01.1 18.6 R J95
K08O13N
C2008 08 02.99937 22 46 11.07 -07 25 46.3 J95 = 8O8E90F = Apollo
K08O13N
C2008 08 03.01299 22 46 08.55 -07 26 03.9 J95
K08O13N
C2008 08 03.03181 22 46 05.11 -07 26 30.4 20.8 R J95
K08O13N
C2008 08 04.09013 22 42 55.64 -07 50 54.6 J95
K08O13N
C2008 08 04.10314 22 42 53.19 -07 51 11.0 21.3 R J95
K08O13N FC2008 08 12.97212 22 17 37.23 -10
59 27.7 J95
K08O13N FC2008 08 13.00223 22 17 32.36 -11
00 02.8 21.3 R J95
K08P01E
C2008 08 02.92451 22 37 43.55 +07 15 20.0 J95 = BK69337 = Amor
K08P01E
C2008 08 02.95788 22 37 58.24 +07 18 52.8 J95
K08P01E
C2008 08 02.98698 22 38 10.92 +07 21 57.4 20.3 R J95
K08P01E
C2008 08 04.00896 22 45 44.79 +09 05 00.7 21.1 R J95
K08P01E
C2008 08 04.01552 22 45 47.43 +09 05 38.8 19.9 R J95
K08P01F
C2008 08 04.02609 23 11 03.08 -08 04 09.8 J95 = BK72401 = Apollo
K08P01F
C2008 08 04.03019 23 11 04.82 -08 04 07.0 J95
K08P01F C2008 08 04.03428 23 11 06.65 -08 04
04.7 18.6 R J95
K08P01F
C2008 08 09.05800 00 08 45.11 -06 28 33.8 J95
K08P01F
C2008 08 09.06113 00 08 48.26 -06 28 27.9 J95
K08P01F
C2008 08 09.06369 00 08 50.82 -06 28 22.8 18.0 R J95
K08P01F
C2008 08 13.13251 01 54 42.73 -02 38 42.9 J95
K08P01F
C2008 08 13.13390 01 54 45.76 -02 38 35.5 J95
K08P01F
C2008 08 13.13530 01 54 48.75 -02 38 27.7 18.0 R J95
K08P01F
C2008 08 14.07305402 31 44.31 -01 07 42.8 J95
K08P01F
C2008 08 14.07628202 31 52.25 -01 07 22.4 J95
K08P01F
C2008 08 14.07895802 31 58.87 -01 07 06.1 17.8 R J95
K08P01F
C2008 08 15.09224 03 16 09.51 +00 43 45.5 J95
K08P01F
C2008 08 15.09301 03 16 11.53 +00 43 51.3 J95
K08P01F
C2008 08 15.09378 03 16 13.55 +00 43 55.4 18.3 R J95
K08P01G
C2008 08 04.06995 02 20 55.42 +09 04 42.1 J95 = BK76531 = Apollo.
Found 43' from nominal
K08P01G
C2008 08 04.07124 02 20 56.64 +09 04 38.9 J95
K08P01G
C2008 08 04.07255 02 20 57.81 +09 04 36.1 J95
K08P01G
C2008 08 04.07465 02 20 59.62 +09 04 31.8 18.8 R J95
K08P02F
C2008 08 09.03969 23 37 54.96 -13 32 50.7 J95 = Amor
K08P02F
C2008 08 09.04219 23 37 56.76 -13 32 56.0 19.2 R J95
K08P03Q
C2008 08 08.94635 19 44 28.18 -06 37 48.6 J95 = MBA
K08P03Q
C2008 08 09.03018 19 44 24.32 -06 38 03.7 J95
K08P03Q
C2008 08 09.03412 19 44 24.18 -06 38 04.4 20.0 R J95
K08P07G
C2008 08 09.06807 21 20 47.60 -11 09 25.6 J95 = Apollo
K08P07G
C2008 08 09.07081 21 20 47.33 -11 09 57.5 19.4 R J95
K08P16V
C2008 08 12.92165 22 08 58.49 +09 22 49.3 J95 = Apollo
K08P16V
C2008 08 12.92499 22 08 58.92 +09 22 23.7 J95
K08P16V
C2008 08 12.92831 22 08 59.30 +09 21 58.2 18.0 R J95
K08P16V
C2008 08 13.97595 22 11 33.04 +06 53 43.2 J95
K08P16V
C2008 08 13.97775 22 11 33.28 +06 53 26.0 J95
K08P16V C2008 08 13.97962 22 11 33.58 +06 53
08.5 18.0 R J95
K08Q00B
C2008 08 19.91385 21 38 07.11 -11 55 38.9 J95 = 8Q59B1E = Apollo
K08Q00B
C2008 08 19.91712 21 38 04.74 -11 56 26.0 J95
K08Q00B
C2008 08 19.91920 21 38 03.27 -11 56 55.9 J95
K08Q00B
C2008 08 19.92293 21 38 00.62 -11 57 49.6 16.3 R J95
K08Q00B
C2008 08 22.87359120 48 40.83 -27 06 18.3 J95
K08Q00B
C2008 08 22.87839920 48 33.92 -27 08 07.8 J95
K08Q00B
C2008 08 22.88302920 48 27.25 -27 09 53.8 J95
K08Q00B C2008 08 22.88964420 48 17.70 -27 12
24.9 16.7 R J95
K08Q03T
C2008 08 30.89045 21 41 59.64 +05 01 23.7 J95 = Apollo
K08Q03T
C2008 08 30.89461 21 41 59.15 +05 01 23.5 J95
K08Q03T
C2008 08 30.89878 21 41 58.67 +05 01 24.2 19.1 R J95
K08Q03U
C2008 08 30.87219 18 35 07.30 +52 27 48.3 J95 = Aten
K08Q03U
C2008 08 30.87774 18 35 07.59 +52 27 28.4 J95
K08Q03U
C2008 08 30.88333 18 35 07.99 +52 27 09.0 18.2 R J95
K08Q11U
C2008 08 31.00764 23 27 30.97 -07 57 23.6 J95 = Apollo
K08Q11U
C2008 08 31.01426 23 27 32.20 -07 58 05.1 19.8 R J95
K08Q20M C2008 08 31.00764 23 27 06.46 -07 53
55.3 J95 = GS88VD =
MBA = Great Shefford discovery (Väisälä orbit only)
K08Q20M C2008 08 31.01286 23 27 06.16 -07 53
55.0 J95
K08Q20M
C2008 08 31.01756 23 27 05.95 -07 53 56.3 J95
K08Q20M
C2008 08 31.05216 23 27 04.29 -07 53 58.4 19.8 R J95
K08Q20M C2008 08 31.95762 23 26
20.46 -07 55 26.2
J95
K08Q23K C2008 08 31.93510 22 42 29.22 +04 14
10.4 J95 = MBA =
confirmation of discovery from station 151 (Markus Griesser)
K08Q23K
C2008 08 31.94079 22 42 28.95 +04 14 08.1 J95
K08Q23K
C2008 08 31.94597 22 42 28.75 +04 14 06.1 19.0 R J95
David Briggs, J69
COD J69
OBS David Briggs
MEA David Briggs
TEL 0.40-m f/4.57 Newtonian reflector + CCD
ACK MPCReport file updated 2008.07.28 09:
AC2
NET USNO-A2.0
K05R34C C2008 07 26.95779 20 34
54.95 +59 25 56.2 15.9 V J69
K05R34C C2008 07 26.95887 20 34
56.24 +59 26 13.1 15.6 V J69
K05R34C C2008 07 26.95993 20 34
57.64 +59 26 30.1 15.6 V J69
COD J69
OBS David Briggs
MEA David Briggs
TEL 0.40-m f/4.57 Newtonian reflector + CCD
ACK MPCReport file updated 2008.08.25 14:45:16
AC2
NET
CMC-14
CK08Q010
C2008 08 24.89749 18 43 33.09 +49 21 19.1 17.5 N J69
CK08Q010
C2008 08 24.90191 18 43 32.25 +49 21 14.6 17.6 N J69
CK08Q010
C2008 08 24.90634 18 43 31.47 +49 21 10.1 17.5 N J69
COD J69
OBS David Briggs
MEA David Briggs
TEL 0.40-m f/4.57 Newtonian reflector + CCD
ACK MPCReport file updated 2008.08.31 11:25:19
AC2
NET
NOMAD
08567 C2008 08 30.95000 23 43 04.96 +18 41
13.7 12.3 C J69
08567 C2008 08 30.95384 23 43 06.10 +18 41
08.5 12.3 C J69
08567
C2008 08 30.95770 23 43 07.33 +18 41 04.3 12.4 C J69
John Fletcher, J93
COD J93
OBS John Fletcher
MEA John Fletcher
TEL 0.25-m f/5.5 Schmidt-Cassegrain + CCD
ACK MPCReport file updated 2008.08.04 00:45:58
AC2
NET USNO-A2.0
01917 C2008 08 03.97162 01 23 08.88 +40 51 32.9 15.2
V J93
01917
C2008 08 03.97374 01 23 09.62 +40 51 33.9 15.2 V J93
01917
C2008 08 03.97586 01 23 10.35 +40 51 33.5 15.2 V J93
04179
C2008 08 04.00052 21 12 09.42 -16 22 36.2 14.8 V J93
04179
C2008 08 04.00264 21 12 09.21 -16 22 36.8 14.8 V J93
04179
C2008 08 04.00476 21 12 09.05 -16 22 37.9 14.7 V J93
08567
C2008 08 03.98008 21 51 26.23 +18 49 58.8 13.9 V J93
08567
C2008 08 03.98571 21 51 27.07 +18 50 04.0 13.8 V J93
08567
C2008 08 03.98782 21 51 27.38 +18 50 05.8 13.8 V J93
11398
C2008 08 04.01986 19 12 00.87 -05 17 56.5 16.1 V J93
11398
C2008 08 04.02410 19 12 00.91 -05 18 07.5 16.2 V J93
11398
C2008 08 04.02832 19 12 00.88 -05 18 18.8 16.2 V J93
35107
C2008 08 03.99206 14 26 55.38 +28 30 34.6 15.0 V J93
35107 C2008 08 03.99417 14 26 54.56 +28 30 18.5 14.9
V J93
35107 C2008 08 03.99628 14 26 53.76 +28 30 01.6 14.9
V J93
John notes that at the time of observation
35107, a PHA, was a mere 0.06 AU from Earth.
8567 0.1 AU
from home planet. RMS error three images using findorb 0.005
arc seconds.
164400 0.1 AU from home planet.
COD J93
OBS John Fletcher
MEA John Fletcher
TEL 0.25-m f/5.5 Schmidt-Cassegrain + CCD
ACK MPCReport file updated 2008.09.11 23:53:29
AC2
NET USNO-A2.0
08567 C2008 09 11.94627 00 52 53.92 +11 51 30.7 12.5
V J93
08567 C2008 09 11.94839 00 52 54.65 +11 51 25.3 12.5
V J93
08567 C2008 09 11.95051 00 52 55.36 +11 51 19.9 12.5
V J93
G4400 C2008 09 11.95850 22 15 07.81 +30 57 36.0 15.1
V J93
G4400 C2008 09 11.96061 22 15 07.57 +30 57 42.1 15.0
V J93
G4400 C2008 09 11.96272 22 15 07.29 +30 57 48.2 15.0
V J93
John notes that at the time of observation 8567 was
0.1 AU from Earth and 164400 0.1 AU from Earth.
COD J66
CON K.Hills,
OBS K.Hills
MEA K.Hills
TEL 0.41-m f/6.9 Ritchey-Chretien + CCD
ACK MPCReport file updated 2008.07.20 00:50:28
AC2 kinverhills@aol.com
NET USNO-B1.0
01636
C2008 07 19.95155 19 29 08.04 -15 23 40.9 15.3 V J66
01636 C2008 07 19.95977 19 29 07.49 -15 23
42.7 15.5 V J66
01636 C2008 07 19.96799 19 29 06.96 -15 23
44.5 15.6 V J66
01636 C2008 07 19.97620 19 29 06.43 -15 23
46.4 15.6 V J66
01636 C2008 07 19.98443 19 29 05.89 -15 23
48.3 15.7 V J66
35107 C2008 07 19.92325 15 29 48.48 +45 06
12.0 15.3 V J66
35107 C2008 07 19.92484 15 29 48.19 +45 06
08.7 15.0 V J66
35107 C2008 07 19.92641 15 29 48.00 +45 06
04.5 14.5 V J66
35107 C2008 07 19.92800 15 29 47.60 +45 06
02.1 14.9 V J66
35107
C2008 07 19.92958 15 29 47.28 +45 05 58.7 15.2 V J66
COD J66
CON K.Hills,
OBS K.Hills
MEA K.Hills
TEL 0.41-m f/6.9 Ritchey-Chretien + CCD
ACK MPCReport file updated 2008.07.27 01:56:09
AC2 kinverhills@aol.com
NET USNO-B1.0
K08M01U C2008 07 26.97010 19 37
08.38 +17 29 02.1 18.3 V J66
K08M01U C2008 07 26.97010 19 37
08.38 +17 29 02.1 18.3 V J66
K08M01U C2008 07 26.97734 19 37
05.28 +17 30 21.3 17.6 V J66
K08M01U C2008 07 26.97955 19 37 04.28 +17 30
45.2 18.1 V J66
87P1183 C2008 07 27.01058 21 02
31.32 -16 50 37.6 18.1 V J66
87P1183
C2008 07 27.01215 21 02 30.99 -16 50 36.4 18.1 V J66
87P1183
C2008 07 27.01374 21 02 30.56 -16 50 36.1 17.4 V J66
87P1183
C2008 07 27.01532 21 02 30.24 -16 50 37.5 18.1 V J66
87P1183
C2008 07 27.02244 21 02 28.66 -16 50 38.2 18.0 V J66
87P1183
C2008 07 27.02402 21 02 28.28 -16 50 39.0 18.1 V J66
87P1183
C2008 07 27.02564 21 02 27.95 -16 50 38.7 18.0 V J66
87P1183
C2008 07 27.02881 21 02 27.18 -16 50 39.1 17.9 V J66
87P1183
C2008 07 27.03041 21 02 26.87 -16 50 39.4 18.1 V J66
K08N00U
C2008 07 26.99153 00 43 35.70 +21 32 53.1 17.6 V J66
K08N00U
C2008 07 26.99390 00 43 35.97 +21 33 00.8 17.6 V J66
K08N00U
C2008 07 26.99626 00 43 36.14 +21 33 03.8 17.4 V J66
K08N00U
C2008 07 26.99863 00 43 36.49 +21 33 09.1 18.0 V J66
K08N00U
C2008 07 27.00100 00 43 36.62 +21 33 13.4 17.7 V J66
K08N00U
C2008 07 27.00337 00 43 36.87 +21 33 17.7 17.8 V J66
Images
Images of high-ecliptic
asteroids obtained by Maurice Gavin on 2008 July 8/10 can be found by following
the links below.
http://www.cloudynights.com/ubbthreads/attachments/2507792-lickzulu080708mg.jpg
http://www.cloudynights.com/ubbthreads/attachments/2509916-zulu080708mgx2.jpg
http://www.cloudynights.com/ubbthreads/attachments/2509959-lick080708mgx2.jpg
http://www.cloudynights.com/ubbthreads/attachments/2512456-mp35107-080710set.jpg
Maurice comments ‘on the latter date through hazy high numbered MP35107 in Hercules, which due to its relative proximity to earth of ~0.12 AU, is an order of magnitude nearer than Lick and Zulu at the time and hence 'bright'!’
Occultations
ASTEROIDAL OCCULTATION - REPORT FORM
====================================
EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK
1. DATE: 2008 Aug 05 STAR: TYC 4686-01249-1 ASTEROID: (4711) Kathy
2.
OBSERVER Name:
Address:
White Lodge,
Tel: +44 (0)1772 632450 Email: ae@f2s.com
3. OBSERVING STATION - Warton Bank Observatory North - fixed single station
Nearest City:
Latitude : 53d 44' 25.6"N
Longitude: 002d 54' 25.4"W
Height above ellipsoid: 65m (EGM96 Geoid Height = 52.4m)
Datum WGS 84 - all coordinates GPS averaged 24hrs.
4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE
Type of event:
(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash
(E)nd observation (J)Interrupt end (R)eappearance (O)ther (specify)
Event Time (UTC) Accuracy
Code (HH MM SS.ss) (+/-S.ss)
S
01 26 (Central predicted
time here: ~
E 01 30
5. TELESCOPE Type: Schmidt-Cassegrain Aperture: 406mm + f/3.3 reducer
Mount: Altazimuth 'goto' Motor drive: Yes
Magnification: Video f.o.v. ~ 15' x 11'
6. TIMING AND RECORDING
Timekeeping: GPS receiver - Garmin 35 HVS, 1pps output into:
Mode: On-screen display - BlackBoxCamera 'STVASTRO' GPS video Date/Time
inserter.
Device: DV camcorder recording of Watec 902H video camera at Cass. focus.
Backup: MSF 60KHz time signal beeps on audio track - synch. confirmed.
7. OBSERVING CONDITIONS
Atmospheric transparency: Fair Wind: Nil Temperature: +10C
Star image stability : Fair Star altitude: +18 degrees
Slight scintillation - no break greater than 0.1 sec
Minor Planet visible on video? No
8. OBSERVATION QUALITY - Good
9. ADDITIONAL COMMENTS
Report submitted to Gilles Regheere and PLANOCCULT.
Positive not expected here - on northern 2 sigma line.
Best
Regards:
Date: 2008 August 05
(Rev. Oct 07)
Photometry
In response to the following posting the MPML;
Arecibo and Goldstone radar
observations have revealed that 2005 RC34 has a very rough surface, and given
recent observations of other NEAs, we suspect it might be an E-class object
(analogous to the enstatite achondrite meteorites). Is anyone planning to get
spectroscopy?
Also, to the best of my knowledge the rotation period is unknown. Is anyone
planning to obtain photometry?
Best wishes,
Lance Benner (on behalf of the radar team)
------------
Dr. Lance A. M. Benner
Research Scientist phone: 818-354-7412
Mail Stop 300-233 fax: -9476
Jet Propulsion Laboratory e-mail: lance@reason.
Richard states that based on images taken between July 20.925-21.095 UT, i.e. 4.1 hours duration, and phase angle of 39.5-40.5 deg, the object appears to have a rotation period of 5.4 +/- 0.4 hr (U=2) and a lightcurve amplitude of 0.12 mag. Mean V magnitude = 14.13. Composite lightcurve based on 172 datapoints, st.dev. = 0.026 mag per datapoint (left hand image above).
The right hand image above shows the lightcurve of the asteroid obtained on 2008 July 23. This was obtained by processing 1360 images obtained over a 4.8-hour observing run. As can be seen the aspect is quite different, presumably the object is rotating virtually pole-on to the Earth at this time.