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
09/12/2017 06:16 Tue 241 Germania 1 168.9 B 16 0.13 0.13 2 88.3 61.1 TYC 5233-02000-1 9.0 2.54 18.0 0.18 USA: California to Minneso 1 3 3 3 3 3 3 3 2 3 3 3 89 Link
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06/06/2017 04:51 Tue 5 Astraea 1 119.1 S 17 0.11 0.15 4 65.7 90.4 TYC 6283-00014-1 9.6 1.82 12.7 0.23 USA: Texas to Florida 1 3 3 3 3 3 3 2 2 3 3 3 86 Link
01/21/2017 06:09 Sat 135 Hertha 1 79.2 Xk 8 0.05 0.12 4 130.3 37.5 TYC 1886-00343-1 10.9 1.78 9.6 0.13 USA: California to Virgini 1 3 2 3 3 3 3 3 2 3 3 3 86 Link
a
12/11/2017 04:51 Mon 141 Lumen 1 131.0 Ch 20 0.11 0.16 1 91.8 40.9 TYC 2915-01715-1 10.8 1.15 14.1 0.15 USA: California to Wiscons 1 3 2 3 3 3 3 3 2 3 3 3 86 Link
in
11/06/2017 05:32 Mon 505 Cava 1 115.0 - 8 0.07 0.15 1 83.4 93.7 HIP 116724 9.0 3.64 20.7 0.44 USA: Arizona to Montana 1 2 3 3 3 3 3 2 3 3 3 3 85 Link
07/01/2017 04:16 Sat 209 Dido 1 159.9 Xc 6 0.11 0.11 2 62.2 51.7 TYC 7349-01278-1 10.8 2.14 20.7 0.26 USA: Kansas to Florida 1 3 2 3 3 3 3 2 3 3 3 3 85 Link
10/23/2017 02:32 Mon 154 Bertha 1 184.9 C 25 0.11 0.13 1 151.4 10.3 TYC 0638-00660-1 10.2 2.46 11.5 0.21 USA: Utah to Michigan 1 3 3 3 3 3 2 2 2 3 3 3 84 Link
04/11/2017 10:04 Tue 105 Artemis 1 119.1 Ch 37 0.10 0.16 2 12.4 99.9 HIP 62736 8.9 2.12 9.6 0.27 USA: Washington to Califor 1 3 3 1 3 3 3 2 2 3 3 3 82 Link
nia
10/07/2017 09:42 Sat 56 Melete 1 113.2 Xk 18 0.12 0.16 3 55.9 96.2 TYC 1314-01646-1 11.2 2.58 15.8 0.18 USA: Minnesota to Pennsylv 1 3 2 3 3 3 2 3 2 3 3 2 81 Link
ania
03/30/2017 00:56 Thu 68 Leto 1 122.6 - 15 0.04 0.13 1 55.3 5.2 TYC 2406-01895-1 10.8 1.96 5.7 0.20 USA: New York 1 3 2 3 2 3 3 3 2 3 3 2 80 Link
11/12/2017 13:40 Sun 187 Lamberta 1 130.4 Ch 11 0.09 0.17 4 15.4 31.3 HIP 58473 8.6 4.61 4.0 0.27 USA: Oregon 1 3 3 2 2 3 2 2 2 3 3 2 76 Link
12/15/2017 04:33 Fri 53 Kalypso 1 115.4 - 9 0.07 0.14 2 130.6 8.9 TYC 4669-00354-1 11.1 2.43 7.5 0.38 USA: Texas to Georgia 1 2 2 3 3 3 3 2 2 2 3 2 75 Link
09/30/2017 06:35 Sat 751 Faina 1 110.5 Ch 24 0.08 0.11 2 173.9 70.0 HIP 39387 9.0 2.88 4.7 0.17 USA: Michigan 1 3 3 3 3 3 2 1 2 2 3 1 73 Link
05/29/2017 03:27 Mon 28 Bellona 1 120.9 S 16 0.06 0.12 2 159.3 15.6 TYC 5685-03152-1 10.3 1.73 12.2 0.66 USA: North Carolina 1 2 3 3 2 3 3 1 2 2 3 2 72 Link
01/05/2017 00:23 Thu 200 Dynamene 1 128.4 Ch 37 0.08 0.13 2 103.8 41.7 TYC 1921-02175-1 11.0 1.05 12.0 0.13 USA: Georgia 1 3 2 3 1 3 3 1 2 3 3 2 71 Link
04/21/2017 12:37 Fri 241 Germania 1 168.9 B 16 0.13 0.13 2 4.217 28.8 TYC 5802-01575-1 11.1 2.23 5.7 0.43 USA: California 1 2 2 1 1 3 2 2 2 2 2 1 57 Link
11/08/2017 10:21 Wed 56 Melete 1 113.2 Xk 18 0.12 0.16 3 14.4 75.8 TYC 0742-01328-1 10.5 2.77 17.4 0.19 USA: New Mexico to Maine 1 3 3 0 3 3 3 3 2 3 3 3 42 Link
02/07/2017 01:50 Tue 739 Mandeville 1 107.5 X 12 0.07 0.1 2 34.3 81.6 TYC 0806-00344-1 11.0 1.27 9.4 0.23 USA: Texas to Florida 1 3 2 0 3 3 3 2 2 3 3 2 37 Link
11/19/2017 09:39 Sun 735 Marghanna 1 Ch 16 0.11 0 76.3 0.9 TYC 1441-02328-1 11.1 4.95 3.4 0.59 USA: Utah to Maine 0 2 2 3 3 3 2 2 2 3 3 2 36 Link
12/26/2017 06:40 Tue 980 Anacostia 1 L 20 0.1 0 83.7 48.4 TYC 2404-00686-1 11.1 0.97 5.9 0.30 USA: California to Minneso 0 2 1 3 3 3 2 3 2 3 2 3 36 Link
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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
_:
Always blank