Table of contents

 

Index to observations received from ARPS members

 

Observations received FROM ARPS MEMBERS

 

AUGUST 2007

 

Astrometry

 

Peter Birtwhistle, J95

 

Peter comments:

The continued bad weather here culminated in flash flooding on 20th July which left us with two rooms under water, but fortunately the observatory stayed dry. Since then the weather has noticably improved with a run of good clear nights in the last week of the month.

 

During the month three NEOs were recovered at their second apparition - 2001 RV17 at the beginning of the month with 2005 XW77 and 2003 CG11 towards the end, both of those two in collaboration with Luca Buzzi at the Schiaparelli Observatory in Italy.

 

A couple of moderately fast movers were followed over several nights - 2007 DT103 which was detected at the end of the month by RADAR from Goldstone and found to be a binary, and 2007 MB4 that passed at about 8 Lunar Distances on July 5th.

 

03866 C2007 07 07.00113 19 05 22.17 -17 30 30.3 J95 = MBA

03866 C2007 07 07.00377 19 05 22.04 -17 30 30.5 J95

03866 C2007 07 07.00701 19 05 21.88 -17 30 30.5 15.6 R J95

 

C5029 C2007 07 27.03619 22 08 33.35 -11 42 16.2 J95 = MBA

C5029 C2007 07 27.04263 22 08 33.07 -11 42 17.7 J95

C5029 C2007 07 27.07936 22 08 31.32 -11 42 23.4 18.6 R J95

 

K01R17V C2007 07 07.91667 12 56 47.57 +46 28 01.5 J95 = Aten = Recovery at 2nd opposition

K01R17V C2007 07 07.92072 12 56 51.21 +46 27 40.7 J95

K01R17V EC2007 07 07.92976 12 56 59.07 +46 26 54.5 J95

K01R17V C2007 07 07.94107 12 57 08.84 +46 25 55.3 J95

K01R17V C2007 07 07.94589 12 57 13.01 +46 25 30.3 19.5 R J95

K01R17V C2007 07 10.93500 13 38 30.33 +41 40 49.1 J95

K01R17V C2007 07 10.93642 13 38 31.35 +41 40 40.2 J95

K01R17V C2007 07 10.93762 13 38 32.32 +41 40 32.0 18.9 R J95

 

K03C11G C2007 07 31.09572 03 01 00.83 +05 45 35.3 J95 = Apollo = Recovery at 2nd opposition

K03C11G C2007 07 31.10354 03 00 54.38 +05 43 31.4 J95

K03C11G C2007 07 31.11093 03 00 48.26 +05 41 34.4 18.5 R J95

 

K04V65K C2007 07 07.00113 19 04 52.77 -17 31 48.4 J95 = MBA

K04V65K C2007 07 07.00377 19 04 52.62 -17 31 48.8 J95

K04V65K C2007 07 07.00701 19 04 52.41 -17 31 49.0 19.2 R J95

 

K05X77W C2007 07 24.95890 18 18 58.93 +09 46 29.3 J95 = Amor = Recovery at 2nd opposition

K05X77W C2007 07 24.96194 18 18 58.55 +09 46 37.9 J95

K05X77W C2007 07 25.00500 18 18 53.10 +09 48 41.6 J95

K05X77W C2007 07 25.00729 18 18 52.82 +09 48 48.8 19.8 R J95

K05X77W C2007 07 26.93107 18 15 08.14 +11 20 05.0 J95

K05X77W C2007 07 26.93253 18 15 07.96 +11 20 08.8 J95

K05X77W C2007 07 26.94747 18 15 06.15 +11 20 50.4 19.7 R J95

 

K07D41A C2007 07 08.01191 04 01 17.71 +84 23 31.7 J95 = Apollo

K07D41A C2007 07 08.01381 04 01 15.41 +84 23 32.7 J95

K07D41A C2007 07 08.01571 04 01 13.53 +84 23 33.2 18.1 R J95

 

K07DA3T C2007 07 27.99530106 03 53.90 +74 58 14.1 J95 = Apollo

K07DA3T C2007 07 27.99647606 03 40.43 +74 58 15.8 J95

K07DA3T C2007 07 27.99777606 03 25.36 +74 58 17.5 16.5 R J95

K07DA3T C2007 07 29.95019301 44 58.52 +58 43 04.1 J95

K07DA3T C2007 07 29.95163801 44 53.62 +58 41 59.1 J95

K07DA3T C2007 07 29.95225701 44 51.52 +58 41 31.2 15.1 R J95

K07DA3T C2007 07 31.11639500 59 51.76 +43 56 10.5 J95

K07DA3T C2007 07 31.11727100 59 50.30 +43 55 32.9 J95

K07DA3T C2007 07 31.11822900 59 48.72 +43 54 51.7 15.4 R J95

 

K07H03W C2007 07 11.02260 13 45 56.74 +70 51 32.2 J95 = Apollo

K07H03W C2007 07 11.03005 13 45 58.36 +70 52 00.6 J95

K07H03W C2007 07 11.03773 13 46 00.14 +70 52 31.1 20.0 R J95

 

K07J20Z C2007 07 07.95675 12 20 51.30 +82 57 25.2 J95 = Apollo

K07J20Z C2007 07 07.96240 12 20 47.24 +82 57 26.7 J95

K07J20Z C2007 07 07.96652 12 20 43.78 +82 57 28.4 J95

K07J20Z C2007 07 07.96932 12 20 41.68 +82 57 29.4 19.6 R J95

 

K07M00R C2007 07 03.95689 15 14 25.39 +30 05 15.4 J95 = Apollo

K07M00R C2007 07 03.96236 15 14 23.65 +30 05 21.2 J95

K07M00R C2007 07 03.96783 15 14 21.96 +30 05 26.4 20.1 R J95

 

K07M04B C2007 07 02.08700218 12 08.07 +19 57 35.3 J95 = Apollo

K07M04B C2007 07 02.08708318 12 08.20 +19 57 38.1 15.8 R J95

K07M04B C2007 07 03.94919619 30 14.02 +41 43 17.7 J95

K07M04B C2007 07 03.94965319 30 15.75 +41 43 39.3 J95

K07M04B C2007 07 03.95009319 30 17.42 +41 44 00.1 J95

K07M04B C2007 07 03.95063119 30 19.46 +41 44 25.8 15.9 R J95

K07M04B C2007 07 06.98221700 44 37.65 +57 39 56.0 J95

K07M04B C2007 07 06.98326600 44 42.88 +57 39 43.6 J95

K07M04B C2007 07 06.98391500 44 46.20 +57 39 36.5 18.3 R J95

K07M04B C2007 07 08.06348 01 53 41.52 +53 09 38.3 J95

K07M04B C2007 07 08.09697 01 55 14.49 +53 01 23.0 19.4 R J95

 

K07M13M C2007 07 02.02744 15 45 23.49 +62 09 07.6 J95 = Apollo

K07M13M C2007 07 02.02850 15 45 23.71 +62 09 03.8 J95

K07M13M C2007 07 02.02955 15 45 24.01 +62 09 00.0 18.1 R J95

 

K07M20T C2007 07 24.92438 15 11 19.22 +78 45 32.3 J95 = Apollo

K07M20T C2007 07 24.92678 15 11 14.10 +78 45 40.6 J95

K07M20T C2007 07 24.92913 15 11 09.31 +78 45 48.7 19.0 R J95

K07M20T C2007 07 29.93544 11 42 36.64 +79 26 19.9 J95

K07M20T C2007 07 29.93964 11 42 27.20 +79 26 08.2 J95

K07M20T C2007 07 29.94384 11 42 17.99 +79 25 56.1 19.3 R J95

 

K07M24B C2007 07 02.03145 19 28 26.53 +33 43 02.5 J95 = Apollo

K07M24B C2007 07 02.03249 19 28 26.01 +33 43 02.7 J95

K07M24B C2007 07 02.05626 19 28 14.03 +33 43 06.9 18.2 R J95

K07M24B C2007 07 06.97091 18 54 16.14 +33 26 27.9 J95

K07M24B C2007 07 06.97452 18 54 14.90 +33 26 26.2 J95

K07M24B C2007 07 06.97780 18 54 13.74 +33 26 24.8 J95

K07M24B C2007 07 06.97951 18 54 13.15 +33 26 23.9 18.4 R J95

 

K07N00A C2007 07 06.98722 23 11 03.49 +29 12 38.9 J95 = 7NB641C = MBA

K07N00A C2007 07 06.99118 23 11 03.60 +29 12 40.8 J95

K07N00A C2007 07 06.99516 23 11 03.65 +29 12 44.3 J95

K07N00A C2007 07 07.01446 23 11 03.69 +29 12 55.7 19.7 R J95

K07N00A C2007 07 07.99336 23 11 08.98 +29 22 29.7 J95

K07N00A C2007 07 08.00162 23 11 09.08 +29 22 34.4 J95

K07N00A C2007 07 08.03452 23 11 09.19 +29 22 53.2 20.2 R J95

 

K07N01L C2007 07 19.08531 23 21 47.85 -16 39 19.5 J95 = Apollo

K07N01L C2007 07 19.08896 23 21 49.60 -16 39 40.6 19.4 R J95

 

K07N05C C2007 07 19.07327 00 19 02.70 +31 26 01.9 J95 = 7O3B772 = Apollo

K07N05C C2007 07 19.07732 00 19 01.06 +31 25 51.5 J95

K07N05C C2007 07 19.08138 00 18 59.42 +31 25 40.2 18.7 R J95

K07N05C C2007 07 31.13360 23 04 35.47 +20 50 18.9 J95

K07N05C C2007 07 31.13546 23 04 34.83 +20 50 12.5 J95

K07N05C C2007 07 31.13773 23 04 34.05 +20 50 05.3 18.2 R J95

 

K07O00X C2007 07 19.05667 22 19 34.49 -09 35 00.7 J95 = 7OB6646 = Apollo

K07O00X C2007 07 19.06691 22 19 34.16 -09 36 15.3 19.0 R J95

 

K07O03H C2007 07 24.93238 21 17 19.87 +08 21 35.8 J95 = Amor

K07O03H C2007 07 24.93460 21 17 21.29 +08 22 10.5 J95

K07O03H C2007 07 24.93682 21 17 22.79 +08 22 45.0 18.7 R J95

 

K07O08G C2007 07 28.10625 03 23 50.98 +07 24 59.4 J95 = 7O41763 = Mars Crosser

K07O08G C2007 07 28.11484 03 23 51.51 +07 25 15.9 19.2 R J95

K07O08G C2007 07 30.09587 03 25 57.26 +08 25 20.3 J95

K07O08G C2007 07 30.11761 03 25 58.61 +08 25 58.9 18.7 R J95

 

David Briggs, J69

 

K03M09T C2007 07 18.93289 19 59 51.92 +22 26 36.2 15.7 R J69

K03M09T C2007 07 18.94062 19 59 47.40 +22 28 04.5 16.2 R J69

K03M09T C2007 07 18.94263 19 59 46.24 +22 28 25.4 16.3 R J69

 

K07DA3T C2007 08 02.94862 00 20 24.23 +18 12 43.4 14.4 R J69

K07DA3T C2007 08 02.94969 00 20 23.60 +18 12 20.0 15.0 R J69

K07DA3T C2007 08 02.95076 00 20 23.18 +18 11 56.6 14.7 R J69

K07DA3T C2007 08 02.96113 00 20 18.19 +18 08 04.7 14.4 R J69

K07DA3T C2007 08 02.96220 00 20 17.68 +18 07 40.9 14.6 R J69

K07DA3T C2007 08 02.96328 00 20 17.12 +18 07 16.5 14.6 R J69

Occultations

 

Andrew Elliott

 

Note a positive report !

 

ASTEROIDAL OCCULTATION - REPORT FORM (Rev. 01/07)

====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2007 July 24 STAR: TYC 0464-02162-1 ASTEROID: (137) Meliboea

 

2. OBSERVER Name: Andrew Elliott

 

3. OBSERVING STATION - Lime House, Carham, KELSO - MOBILE STATION

Nearest City: GALASHIELS, Scotland

Station Latitude: 55d 37' 35.3"N Longitude: 002d 19' 59.0"W

Altitude: 52m above MSL

Datum WGS 84 - all coordinates GPS averaged, 10 mins. Single Station

 

4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE/POSITIVE

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.sss)(+/-SS.ss) Central predicted time here:~01:01:07UT

S 00 57

D 01 01 17.908 0.01 **

R 01 01 29.568 0.01 Duration 11.66 sec

E 01 05

 

5. TELESCOPE Type: Schmidt-Cassegrain Aperture: 254mm + f/3.3 reducer

Mount: Altazimuth 'goto' Motor drive: Yes

Magnification: Not applicable - video f.o.v. = 37 x 28 arcmin

 

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 - synchronisation of

GPS seconds confirmed.

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Poor - through thin cloud but other stars

visible throughout.

Wind: Nil Temperature: ~+12C

Star image stability : Fair Star altitude: 32 degrees

Scintillation - not significant during 'D' and 'R'.

Minor Planet visible on video? No

 

8. OBSERVATION QUALITY - Good - Occultation definite.

 

9. ADDITIONAL COMMENTS

(Report submitted to Gilles Regheere and PLANOCCULT.)

**Video captured using Matrox Meteor II capture card and Sirko Molau's

'GRABSEQ' s/w. Individual separated interlaced fields were captured and

studied visually using 'AVI2BMP' 0.49. STVASTRO time corrected for

difference between exposure and readout time (STVASTRO time = start of

field read-out = end of field exposure).

 

Best Regards: Andrew Elliott

Date: 2007 August 06

 

ASTEROIDAL OCCULTATION - REPORT FORM

====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2007 August 08 STAR: TYC 0650-01016-1 ASTEROID: (1847) Stobbe

 

2. OBSERVER Name: Andrew Elliott

 

3. OBSERVING STATION - Warton Bank Observatory North Single Station

Nearest City: PRESTON, UK

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? PROBABLY 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) (+/-SS.ss) Central predicted time here: 02:14 UT

S 02 11

E 02 17

 

5. TELESCOPE Type: Schmidt-Cassegrain Aperture: 406mm + f/3.3 reducer

Mount: Altazimuth 'goto' Motor drive: Yes

Magnification: Not applicable - video f.o.v. = 23 x 17 arcmin (== f/2.4.)

 

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 120N camera at Cass. focus.

Backup: MSF 60KHz time signal beeps - synch confirmed.

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Good Wind: Nil Temperature: ~+10C

Star image stability : Poor Star altitude: 20 degrees

Continuous scintillation - see comments.

Minor Planet visible on video? No

 

8. OBSERVATION QUALITY - Poor

 

9. ADDITIONAL COMMENTS

(Report submitted to Gilles Regheere and PLANOCCULT.)

Site just north of predicted N limit.

This was my first recording using the Watec 120N, but disappointing. The

camera seems much less sensitive than the Watec 902. Because of the

short maximum duration (1.2 sec) I used it with the Frame Integration set

to 'OFF' i.e. normal video rate. Unfortunately this brought the star

within the strong scintillation zone and it was not possible to

distinguish a true short occultation. (Atmospheric extinction would have

increased the magnitude to ~10.7) The video recording will be retained

in case of other reports.

 

Best Regards: Andrew Elliott

Date: 2007 August 08

(Rev. Aug 2008)

 

Index to observations received from ARPS members

 

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