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91474 (1999 RO95)
Classification: Main-belt Asteroid          SPK-ID: 2091474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2086959431813628 4.53e-08  
a 2.810018816103435 1.698e-08 au
q 2.223579288919352 1.2474e-07 au
i 5.293142084181934 4.6335e-06 deg
node 144.9495198233319 4.944e-05 deg
peri 185.9344079584746 5.0654e-05 deg
M 245.9688824965141 1.362e-05 deg
tp 2459941.483242488547
(2022-Dec-27.98324249)
6.7441e-05 TDB
period 1720.530076273956
4.71
1.5595e-05
4.27e-08
d
yr
n .2092378418514075 1.8965e-09 deg/d
Q 3.396458343287518 2.0524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      747  
   data-arc span      10265 days (28.10 yr)  
   first obs. used      1993-03-26  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53995  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:40:41  

Additional Information
 Earth MOID = 1.21213 au 
 Jupiter MOID = 1.97293 au 
 T_jup = 3.283 
[ 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 15.25   n/a E2021B10  
diameter diameter 5.399 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.15365 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 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91474 (1999 RO95)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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