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1655 Comas Sola (1929 WG)
Classification: Main-belt Asteroid          SPK-ID: 2001655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2345511272000221 3.4732e-08  
a 2.781286037306694 8.7753e-09 au
q 2.128932262190726 9.7179e-08 au
i 9.601795520405503 3.3649e-06 deg
node 111.1243099544701 2.4997e-05 deg
peri 323.5446808123099 2.5953e-05 deg
M 176.4859854326714 8.7021e-06 deg
tp 2458169.933072927876
(2018-Feb-20.43307293)
3.916e-05 TDB
period 1694.208710186982
4.64
8.0181e-06
2.195e-08
d
yr
n .2124885781990039 1.0056e-09 deg/d
Q 3.433639812422662 1.0833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2868  
   data-arc span      43446 days (118.95 yr)  
   first obs. used      1901-11-05  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40255  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:16:47  

Additional Information
 Earth MOID = 1.15274 au 
 Jupiter MOID = 1.86619 au 
 T_jup = 3.272 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.1   n/a MPO492769 IRAS observations used: 3
diameter diameter 35.943 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 20.456 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Addleman, D.; Covele, B.; Duncan, A.; Johnson, J.; et al. (2005) Minor Planet Bull. 32, 76-78.]
[Stephens, R.D. (2009) Minor Planet Bull. 36, 125-126.]
geometric albedo albedo 0.045   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.642   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=12.19 deg.
U-B UB 0.262   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=12.19 deg.
Tholen spectral type spec_T XFU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1655 Comas Sola           Discovered 1929 Nov. 28 by J. Comas Sola at Barcelona.
Named by the Fabra Observatory in memory of Josep Comas Sola (1868-1937), first director of the Fabra Observatory, Barcelona, and a well-known observer of minor planets and comets for many years. Among his discoveries were the short-period comet Comas Sola and 11 numbered minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5357Last Updated: 2006-03-21

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1937-Jul-19 00:04 00:01 Jupiter 1.93785548401506 1.93785497936464 1.93785598866757 2.75883993372967 2.59557553326529 2428733.502759408 1.11016495998059 122.004273988866 9.21105187715201 82.696135472609 3405356.36902345 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:16:54 2020-Nov-13 04:16
1960-May-08 00:35 < 00:01 Jupiter 1.88178525703507 1.88178496273385 1.8817855513364 2.21990529580464 2.00692466352639 2437062.524433760 0.761964005945803 97.9247958512657 27.119198138901 84.9620522461065 2555623.01581238 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:16:54 2020-Nov-13 04:16
2044-May-04 07:27 < 00:01 Jupiter 1.93099177829806 1.93099151665194 1.93099203994441 2.74356287022159 2.5787292416521 2467739.810213979 0.441181077776559 61.5435237551405 9.4692162197241 83.0590376531017 3690695.21946385 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:16:54 2020-Nov-13 04:16
2067-Feb-21 19:29 < 00:01 Jupiter 1.87935676674222 1.87935643113044 1.879357102354 2.2632722148944 2.05450843936502 2476068.311701829 0.765551165415966 90.749076483095 26.515311786039 84.6374115830092 2743284.7797596 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:16:54 2020-Nov-13 04:16
2151-Feb-18 20:09 00:02 Jupiter 1.91675704410337 1.91675641309793 1.91675767511558 2.71296059332316 2.54486684795065 2506745.339328293 1.94753435771951 200.593150487417 9.27146358687436 84.2079764833089 3439131.68437893 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:16:54 2020-Nov-13 04:16
2173-Dec-09 13:56 00:02 Jupiter 1.87584045314298 1.87583994006377 1.87584096622391 2.30492627550864 2.09990458181564 2515075.080434125 2.25837165960327 160.336142214004 34.0790070596475 -81.3179526949643 2633176.43921135 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:16:54 2020-Nov-13 04:16

Alternate Designations
 1929 WG = 1929 WC1 = 1958 BG = A901 VG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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