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1628 Strobel (A923 RT)
Classification: Main-belt Asteroid          SPK-ID: 2001628
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06688755414532802 3.1237e-08  
a 3.010955050839549 1.1096e-08 au
q 2.80955963184737 9.3125e-08 au
i 19.38764897484199 4.2825e-06 deg
node 181.1734985597353 1.0128e-05 deg
peri 288.7383152579723 3.3889e-05 deg
M 73.31667569268392 3.1514e-05 deg
tp 2458611.853197115549
(2019-May-08.35319712)
0.00016717 TDB
period 1908.335964724651
5.22
1.0549e-05
2.888e-08
d
yr
n .1886460280865395 1.0428e-09 deg/d
Q 3.212350469831728 1.1838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2874  
   data-arc span      35401 days (96.92 yr)  
   first obs. used      1923-09-11  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:04  

Additional Information
 Earth MOID = 1.88273 au 
 Jupiter MOID = 1.89391 au 
 T_jup = 3.160 
[ 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 10.3   n/a MPO502169 IRAS observations used: 12
diameter diameter 59.345 km 0.484 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.418 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
[Polakis, T. (2020) Minor Planet Bull. 47, 314-321.]
geometric albedo albedo 0.047   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.840   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.41 deg.
U-B UB 0.320   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.41 deg.

1628 Strobel (A923 RT)          Discovered 1923-Sep-11 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A923 RT = 1926 GY = 1947 GC = 1949 QA2 = 1952 DV2 = 1957 CA = 1960 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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