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91533 (1999 RY199)
Classification: Main-belt Asteroid          SPK-ID: 2091533
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07760236493836456 3.1402e-08  
a 2.617489041886648 1.4805e-08 au
q 2.41436570203599 8.1545e-08 au
i 14.24409535432198 1.4086e-06 deg
node 284.4301886065863 4.9966e-06 deg
peri 275.6612263622584 1.413e-05 deg
M 159.2963445771211 1.5835e-05 deg
tp 2458516.069988847192
(2019-Feb-01.56998885)
6.4518e-05 TDB
period 1546.769981879417
4.23
1.3124e-05
3.593e-08
d
yr
n .2327430737714334 1.9747e-09 deg/d
Q 2.820612381737306 1.5954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1859  
   data-arc span      7826 days (21.43 yr)  
   first obs. used      1999-09-08  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:46:21  

Additional Information
 Earth MOID = 1.45835 au 
 Jupiter MOID = 2.35539 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457941.5 (2017-Jul-07.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0760159406497434 3.1494e-08  
q 2.419769608254375 8.1646e-08 au
tp 2458516.798590035432
(2019-Feb-02.29859004)
6.5538e-05 TDB
node 284.4496056684181 4.9986e-06 deg
peri 275.9674202167944 1.4364e-05 deg
i 14.23756992749321 1.4086e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1859  
   data-arc span      7826 days (21.43 yr)  
   first obs. used      1999-09-08  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:46:21  

Additional Information
 Jupiter MOID = 2.35539 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.918999062061171E-16 -2.535774250195939E-15 3.112906374540908E-13 5.978467861446773E-15 -2.612932063346255E-14 8.828117278782624E-15
q -2.535774250195939E-15 6.666066241166103E-15 -3.017532256825372E-13 -1.159838481583065E-14 1.506905545732382E-13 -2.324846331381402E-14
tp 3.112906374540908E-13 -3.017532256825372E-13 4.295251029398172E-9 7.509603504898871E-11 8.626963713498571E-10 -7.74647940825052E-13
node 5.978467861446773E-15 -1.159838481583065E-14 7.509603504898871E-11 2.498588155390184E-11 -6.435103033823878E-12 -1.902900424755866E-12
peri -2.612932063346255E-14 1.506905545732382E-13 8.626963713498571E-10 -6.435103033823878E-12 2.063337447899386E-10 5.104507333772066E-13
i 8.828117278782624E-15 -2.324846331381402E-14 -7.74647940825052E-13 -1.902900424755866E-12 5.104507333772066E-13 1.984182817261598E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.98   n/a E2021B10  
diameter diameter 4.987 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.85 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:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.283   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91533 (1999 RY199)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RY199 = 2000 WM117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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