DATE_TIME DOW AST AST_NAME S R ASTER TAX ROT ANG_ MAX_ SES R D I Mdeg Mpct STAR_NAME VMAG RMAG dMAG DURs PATH LOCATION S P S M T L W E D R C R Q F COMMENTS LINK
A S _DIAM PER DIAM ANG_ A A O _ERR C A T O I O T L U S O I I
T V DIAM P M T I T A O M C H E R R S S N
_20 I A H R N E R V C T K
06/14/2018 09:46 Thu 168 Sibylla 1 148.4 Ch 47 0.07 0.1 3 148.5 0.6 HIP 99733 8.9 4.41 22.0 0.17 USA, Texas, Florida 1 3 2 3 3 3 3 3 3 3 3 3 88 Faint star, close to dawn in F Link
L
09/16/2018 08:54 Sun 80 Sappho 1 78.4 S 14 0.10 0.12 3 176.5 44.3 HIP 24403 7.2 4.62 5.0 0.10 USA, Nevada, Colorado, Mic 1 3 3 3 3 3 3 2 2 3 3 3 86 Good Link
higan
09/29/2018 07:34 Sat 766 Moguntia 0 31.3 - 5 0.02 0.02 1 40.6 81.7 HIP 4526 7.9 6.30 3.8 0.76 USA, Texas, S Carolina 1 2 3 1 3 3 3 3 2 3 3 3 82 Good Link
03/01/2018 06:39 Thu 14991 1997 UV14 0 63.9 99.2 HIP 27364 5.3 13.2 1.8 5.01 USA, Colorado 1 1 3 3 3 3 3 2 2 3 3 3 80 Link
11/15/2018 09:55 Thu 391 Ingeborg 0 0.0 S 26 0.00 0 1 139.0 48.2 TYC 4828-00019-1 8.3 6.00 1.5 1.71 USA, Texas, Minnesota 1 1 2 3 3 3 3 3 2 3 3 3 80 Link
09/02/2018 08:29 Sun 524 Fidelio 0 71.7 - 14 0.06 0.07 1 29.5 58.4 HIP 27092 8.9 1.03 2.4 0.24 USA, Arizona, Colorado, Mi 1 3 2 1 3 3 3 2 2 3 3 3 79 Faint star Link
nnesota
02/14/2018 10:34 Wed 1063 Aquilegia 0 17.8 - 6 0.02 0.02 1 164.3 1.9 HIP 38342 8.6 6.00 2.5 1.16 USA, Nevada, Arizona 1 1 2 3 3 3 3 2 2 3 3 3 77
08/03/2018 09:25 Fri 1461 Jean-Jacques 0 32.9 - 17 0.02 0.02 1 63.2 64.4 HIP 107663 8.6 6.10 3.0 0.96 USA, New Mexico, Iowa 1 2 2 3 3 3 3 2 2 3 3 2 77 Faint star Link
04/06/2018 04:33 Fri 3641 Williams Bay 0 0 0.03 0 68.6 69.6 HIP 63615 8.4 7.60 2.1 2.12 USA, Montana, Michigan 1 1 2 3 3 3 2 3 2 3 3 2 75 Faint star Link
08/25/2018 08:09 Sat 10565 1994 AT1 0 28.2 98.8 HIP 114447 8.3 7.20 2.2 2.27 USA, Arizona, S Dakota 1 1 2 1 3 3 3 2 2 3 3 3 73 Link
05/01/2018 04:26 Tue 1560 Strattonia 0 C 0 0 0 127.0 98.4 TYC 1354-00293-1 8.4 8.70 0.9 1.44 USA, Nevada, Texas 1 1 2 3 2 3 3 2 1 3 3 3 72 Soon after dusk Link
10/07/2018 02:28 Sun 439 Ohio 0 - 19 0.05 0 78.5 5.7 HIP 80248 7.5 8.70 2.2 0.37 USA, Oregon, Wyoming 1 2 3 3 1 3 3 1 2 3 3 2 71 Soon after dusk Link
05/09/2018 11:40 Wed 5468 Hamatonbetsu 0 113.1 36.8 HIP 73125 8.0 7.20 3.2 2.09 USA, Oregon, Colorado 1 1 3 3 1 3 3 1 2 3 3 2 68 At dusk? Link
01/22/2018 13:27 Mon 1183 Jutta 0 17.9 213 0.02 0.02 1 127.2 26.1 HIP 43950 7.0 8.30 2.4 1.27 USA, Oregon 1 1 3 3 2 3 2 2 2 2 2 2 67 Link
09/07/2018 00:34 Fri 633 Zelima 0 34.4 S 12 0.02 0.03 1 157.5 10.5 HIP 109139 4.3 9.30 3.8 1.02 USA, Florida 1 1 3 3 1 3 2 1 2 3 3 2 66 Link
04/27/2018 03:01 Fri 3353 Jarvis 0 202 0.02 0 59.2 90.5 HIP 40419 8.3 9.10 0.6 2.92 USA, S Texas, Georgia 1 1 2 3 2 3 3 2 1 3 2 2 66 Faint star Link
10/14/2018 12:57 Sun 1438 Wendeline 0 0 0 0 113.3 29.5 HIP 50470 8.5 2.60 1.2 1.85 USA, California 1 1 2 3 1 3 3 2 2 3 3 1 65 At dawn, faint star Link
02/14/2018 02:59 Wed 540 Rosamunde 0 - 9 0.03 0 170.2 2.9 HIP 11665 8.6 7.00 0.8 0.70 USA, Texas, Florida 1 2 2 3 3 3 3 2 1 2 1 1 64 Link
04/28/2018 00:50 Sat 1365 Henyey 0 - 0 0 0 50.1 95.4 HIP 47158 8.2 7.40 1.6 1.59 USA, New York 1 1 2 3 1 3 2 3 2 2 2 1 61 At dusk Link
01/12/2018 23:35 Fri 464 Megaira 0 74.0 C 13 0.06 0.08 1 162.4 14.5 TYC 1310-00528-1 8.9 4.74 8.3 0.28 USA, N Dakota 1 3 2 3 1 3 1 2 2 1 2 1 60 Link
01/15/2018 09:46 Mon 1214 Richilde 0 Xk 10 0.03 0 73.1 2.6 HIP 64642 8.9 7.80 2.0 0.96 USA, Maine 1 2 2 3 3 3 1 2 2 1 1 1 60 Link
01/23/2018 09:46 Tue 1810 Epimetheus 0 29 0 0 107.3 34.1 HIP 40232 8.5 6.10 1.2 2.49 USA, New York 1 1 2 3 3 3 1 2 2 1 1 1 57 Link
Version 00 contains Steve Preston's occultations that meet the following criteria:
- Dates are in 2017.
- All asteroids either have a satellite or are resolvable or are USA lower-science events.
Three versions of the occultation table are provided:
- US-only (occult_us_v10.html)
- non-US (occult_non_us_v10.html)
- all (occult_v10.html)
Date-sorted versions of all three tables are also provided.
In addition, non-html versions of the raw data are provided for import into Excel (drop ".html" from the filenames).
Each table contains the following fields:
DATE_TIME
Date and time of the occultation in UNITY date format (MM/DD/YYYY HH:MM)
DOW:
Day Of the Week (first three letters, i.e. Sun, Mon, Tue...) in London (GMT).
Note that nights are split into Sun/Mon, Mon/Tue, etc...
AST:
Asteroid number
AST_NAME:
Asteroid name
SAT:
1 = Asteroid has a satellite
0 = no satellite
RSV:
1 = Asteroid is resolvable with AO
0 = Asteroid is not resolvable with AO
ASTER_DIAM:
From Horizons, the asteroid's diameter (units = KM)
SPECTYPE
From PDS, taxonomy from Bus/Binzel 2002 SMASSII survey.
ROTPER
From the IAU Minor Planet Center Lightcurve Database, the asteroid's rotational period (units = hours).
ANG_DIAM:
From Horizons, the asteroid's angular diameter (units = arcseconds)
SES:
The number of times we have observed this asteroid.
(note: some sessions may not be useful due to weather, other sessions may be part of RAP, Resolved Asteroid Program)
RAP:
The number of potential Resolved Asteroid Program sessions (note - some RAP sessions may not be useful).
DAMI:
"1" indicates the asteroid is on the DAMIT mass priority list.
IOTA:
"1" indicates the asteroid is on the IOTA modeling priority list.
Mdeg:
From Horizons, the target-observer-Moon angle (lunar elongation, units = degrees).
Mpct:
From Horizons, the Moon's illumination (phase, units = percent).
STAR_NAME:
Star Name.
VMAG:
Star visual magnitude verified in UCAC4 (Vmag, used for evaluation only if RMAG field is empty).
RMAG:
Star Red magnitude (rmag) from UCAC4 via VizieR site.
dMAG:
Drop in star magnitude due to the occultation.
DURs:
How long the occultation will last, approximately (units = seconds)
PATH_ERR:
Path/track error offset (units = track widths)
LOCATION:
Significant land masses where the occultation can be viewed
SCI:
Second crude attempt at a SwRI prioritization (this may still change later):
3 = RAP (even if the number of prior RAP sessions = 0)
2 = non-RAP but is Trojan or has satellite
1 = No trojan or satellite or RAP, and has been observed before (SES > 0)
0 = No trojan or satellite or RAP, and has not been observed before (SES = 0)
PATH:
A grading of the path quality based upon path-widths of error (PATH_ERR):
3 = PATH_ERR < 0.3
2 = 0.3 < PATH_ERR < 1.0
1 = PATH_ERR > 1.0
Note: A poor rating could mean that better astrometry is needed.
STAR:
Star quality approximation:
3 = Bright star (MAG < 10.5), good mag drop (dMAG > 0.5), normal star
2 = Either the MAG or dMAG is iffy (10.5 < MAG < 11.5, 0.5 < dMAG < 1.0)
1 = Both the MAG and dMAG are iffy (10.5 < MAG < 11.5, 0.5 < dMAG < 1.0)
0 = MAG is bad (>11.5), dMAG is bad (<0.5), or double star
(currently we don't down-weight other star issues)
MOON:
Moon quality approximation (note - some values may need adjustment):
3 = Star's lunar elongation > 50 degrees
2 = Elongation < 50 degrees, but dim Moon (Mpct < 50) or bright star (MAG < 10)
1 = Elongation < 50 degrees, but bright Moon (Mpct > 50) or dim star (MAG > 10)
0 = Elongation < 50 degrees, bright Moon (Mpct > 50) and dim star (MAG > 10)
SUN:
Subjective rating of dusk/dawn at the best observing location
3 = dark
2 = within 3 hrs of sunset or 1 hr of sunrise
1 = twilight conditions
0 = daylight, forget it
LOC:
Subjective rating of LOCATION:
3 = Visible from continental USA or Europe
2 = Visible from another location that is somewhat accessible
1 = Visible from a poor-access location
0 = forget about it, only the dolphins will view this one
WTHR:
Subjective rating of seasonal weather at the best observing site:
3 = No weather issues foreseen
2 = Iffy weather, perhaps a cold winter location or dusty in the summer
1 = Severe weather concerns, or concerns due to minimal locations (i.e. FLA-only)
ELEV:
Subjective rating of elevation at the best observing site:
3 = Greater than ~45 degrees
2 = Between ~15 and ~45 degrees
1 = Less than ~15 degrees
DUR:
Occultation duration:
3 = DURs > 20.0
2 = 1.0 < DURs < 20.0
1 = 0.5 < DURs < 1.0
0 = DURs < 0.5
RSRC:
Subjective rating of our ability to deploy sufficient resources (3=good, 1=poor)
COST:
Subjective rating of the relative cost of the observations (3=best, 1=expensive)
RISK:
Subjective rating of our odds of success (3=good, 0=no_way)
Q:
Sorting field, currently (LQ+PRI+SQ+MQ)*8, can be set by hand
FIN:
Finalist selections by SwRI, based on all known criteria (above).
y = yes, this is a good finalist candidate
? = maybe, this might be a finalist pending more analysis
n = no, this occultation won't work
COMMENTS:
Comments
LINK:
Hypertext link to the occultation event page on Steve Preston's website
_:
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