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1996 European Asteroidal Occultation Results

Source : 1996 EAON publication by Roland Boninsegna
Page maintained by Eric Frappa -
Updated : 2021/01/07

January 29 : Leopoldina

All the times are in UT. Observations are presented in reverse chronology.
All geographical coordinates should be expressed in WGS84 datum.

Only positive or negative observations are compiled here, not clouded reports (sorry, too much work).
Unless clear positive or special event, reports about events with predicted max duration <1s are stored but not published on these pages.

For one observation, the first line is always :
O+ : positive, O- : negative, O? : uncertain | name of the observer | Start observation | End observation | optics and aperture in mm | method | country | longitude | latitude | altitude in m | long lat datum (W : WGS84) alt datum (W : WGS84, S : Mean Sea Level) |

If the occultation is positive, or sometimes uncertain (O?), the second line is :
duration in sec. | time of Disappearance | accuracy in sec. | time of Reappearance | accuracy in sec. | time source | reaction time for D in sec. (if visual) | reaction time for R in sec. (if visual) | A : reaction time applied, N : no reaction time applied (if visual) |

If multiple events are observed, they are processed as separate observations, but with a numerotation added in the first field (O+1, O+2...).

If necessary, other lines in italic are added for comments.

The characters |; specify the end of one observation description.

Abbreviations used are :


B : Binoculars                      CCD : CCD or CMOS imaging
E : naked Eye                       PHG : photographic recording
L : Lens optics (refractor)         PHM : photometer
M : Mirror optics (reflector)       VID : video recording
                                    VIS : visual
                                    WEB : webcam recording

GPS   : GPS receiver (no more info or only NMEA), unreliable method
GPS+  : GPS NMEA with display correction applied
GPS++ : GPS one Pulse Per Second
PHONE : Phone time signal (wired phone)
RAD   : Radio time signal (no more info or intermittent radio control. clock)
RAD+  : Intermittent radio controlled clock updated just before event
RAD++ : Permanent radio time signal
LAC   : Local atomic clock
NTP   : Network Time Protocol (no more info or Windows sys), unreliable method
NTP+  : Permanent NTP synchro under Linux/Unix sys
NTP++ : Permanent NTP synchro with local atomic clock (observatories)
TTV   : TV teletext display, unreliable method
Note: for the best accuracy, only GPS++, PHONE, RAD++, NTP++ or LAC should be
used.


1996/01/29 | 893 | Leopoldina | TYC 0748-00155-1
chords + DAMIT model

P+ | prediction           | 21:58:03 | 21:58:03 |       |     |    | E  04 00 00   | N 50 42 12   |    0 | WS |;
O- | Rui Goncalves        | 21:51:00 | 22:09:00 | M254  | VIS | PT | W  09 19 33.6 | N 38 42 03.0 |   62 |    |;
O+ | Klaas Bakker         | 21:52:00 |          | M130  | VIS | FR | E  03 06 11.4 | N 50 19 04.4 |  170 | WS |
 2.9  | 21:58:00.3  | 0.3  | 21:58:03.2  | 0.3  | RAD++ | 0.4  | 0.4  | A |;
O+ | Gilles Regheere      | 21:47:00 | 22:06:00 | M200  | VIS | FR | E  03 29 55.3 | N 50 21 26.9 |   46 | WS |
 4    | 21:57:57    | 3    | 21:58:01    | 3    | PHONE |      |      | N |;
O+ | Tim Polfliet         | 21:46:00 |          | M250  | VIS | BE | E  03 42 27.3 | N 51 01 22   |   10 | WS |
 1.9  | 21:58:12.7  | 0.5  | 21:58:14.6  | 0.4  | RAD++ | 0.3  | 0.2  | A |
Unsolved ~12.5 sec apparent shift.|;
O+ | Roland Boninsegna    | 21:49:48 | 22:08:09 | M300  | VIS | BE | E  04 34 57.2 | N 50 05 26.4 |  195 | WS |
 4.6  | 21:57:51.6  | 0.2  | 21:57:56.2  | 0.2  | RAD++ | 0.7  | 0.8  | A |;
O- | Frans Van Loo        | 21:48:00 | 22:08:00 | M250  | VIS | BE | E  05 30 15   | N 51 00 00   |   80 |    |;
O- | Paul Gerard          | 21:50:00 | 22:10:00 | M130  | VIS | BE | E  05 36 30   | N 50 21 15.3 |  250 |    |;
O- | Gerard Faure         | 21:47:40 | 22:10:00 | M200  | VIS | FR | E  05 40 32   | N 45 06 26.4 |  270 |    |;
O- | Lars Lindhard        | 21:50:21 | 22:09:28 | M250  | VIS | DK | E  08 26 25   | N 55 30 41   |   16 |    |;
O- | Ludek Vasta          | 21:48:00 | 22:02:00 | M350  | VIS | CZ | E  14 23 56.3 | N 50 04 56.1 |  325 |    |;
O- | Jan Manek            | 21:52:30 | 22:10:00 | L180  | VIS | CZ | E  14 23 57.0 | N 50 04 56.0 |  327 |    |;
O- | Josef Kujal          | 21:48:00 | 22:08:00 | L100  | VIS | CZ | E  15 50 25.0 | N 50 10 45.5 |  278 |    |;
O- | Michal Kyncl         | 21:48:00 | 22:08:00 | L110  | VIS | CZ | E  15 50 25.0 | N 50 10 45.5 |  278 |    |;
O- | Katarina Kerekesova  | 21:48:00 | 22:08:00 | L150  | VIS | SK | E  20 00 24   | N 48 22 28   |  228 |    |;