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2660 Wasserman (1982 FG)
Classification: Main-belt Asteroid          SPK-ID: 2002660
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685278673492737 2.9754e-08  
a 2.618716236545831 9.7986e-09 au
q 2.177389574007845 7.833e-08 au
i 12.33765369214478 4.6187e-06 deg
node 203.8425152498701 1.5941e-05 deg
peri 86.92898945121124 2.1745e-05 deg
M 272.36278066631 1.5854e-05 deg
tp 2459377.305450938624
(2021-Jun-11.80545094)
6.9172e-05 TDB
period 1547.857900664326
4.24
8.6876e-06
2.379e-08
d
yr
n .2325794892706181 1.3054e-09 deg/d
Q 3.060042899083816 1.145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2734  
   data-arc span      35004 days (95.84 yr)  
   first obs. used      1924-09-29  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:55:23  

Additional Information
 Earth MOID = 1.2041 au 
 Jupiter MOID = 2.20935 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456849.5 (2014-Jul-11.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1696449512652884 2.9834e-08  
q 2.174184614833666 7.8588e-08 au
tp 2456277.544120404897
(2012-Dec-16.04412040)
6.149e-05 TDB
node 204.0080134599729 1.5981e-05 deg
peri 86.20070839716188 2.1641e-05 deg
i 12.32279510487725 4.6138e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2734  
   data-arc span      35004 days (95.84 yr)  
   first obs. used      1924-09-29  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:55:23  

Additional Information
 Jupiter MOID = 2.20935 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.900607343694388E-16 -2.331922959158203E-15 3.064229545420988E-13 2.572249718372169E-16 9.193651420503306E-14 -5.01340278267379E-16
q -2.331922959158203E-15 6.176028070836139E-15 -6.578942695371543E-13 -2.64027982054269E-16 -2.038152465389158E-13 1.643575115014041E-15
tp 3.064229545420988E-13 -6.578942695371543E-13 3.7809781354185E-9 -2.045080109493718E-12 9.06647123598187E-10 2.104969337821802E-12
node 2.572249718372169E-16 -2.64027982054269E-16 -2.045080109493718E-12 2.55388230480367E-10 -2.494854196237671E-10 -1.622256927978041E-11
peri 9.193651420503306E-14 -2.038152465389158E-13 9.06647123598187E-10 -2.494854196237671E-10 4.683368936530379E-10 1.629951928538721E-11
i -5.01340278267379E-16 1.643575115014041E-15 2.104969337821802E-12 -1.622256927978041E-11 1.629951928538721E-11 2.128731087978098E-11

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 12.0   n/a MPO384774  
diameter diameter 9.232 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 527.991 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.300   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2660 Wasserman (1982 FG)          Discovered 1982-Mar-21 by Bowell, E. at Flagstaff (AM)
on plates taken by B. A. Skiff at the Anderson Mesa station of the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 FG = 1974 KG = 1975 VZ2 = 1979 SC2 = A924 SA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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