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900 Rosalinde (A918 PJ)
Classification: Main-belt Asteroid          SPK-ID: 2000900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626408800356365 1.0159e-08  
a 2.474015567338125 6.2371e-09 au
q 2.071639498244388 2.5224e-08 au
i 11.55843194062954 5.6363e-07 deg
node 182.2449961696768 2.2608e-06 deg
peri 121.9126094755969 6.1302e-06 deg
M 173.6837844059064 4.9025e-06 deg
tp 2458710.761012969455
(2019-Aug-15.26101297)
1.8872e-05 TDB
period 1421.353387568178
3.89
5.3749e-06
1.472e-08
d
yr
n .2532797284255475 9.5779e-10 deg/d
Q 2.876391636431863 7.2515e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3131  
   data-arc span      37522 days (102.73 yr)  
   first obs. used      1918-08-10  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38307  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:42:00  

Additional Information
 Earth MOID = 1.08303 au 
 Jupiter MOID = 2.46489 au 
 T_jup = 3.436 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456807.5 (2014-May-30.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628087302968466 1.0181e-08  
q 2.070508109407927 2.5332e-08 au
tp 2457291.230870764167
(2015-Sep-25.73087076)
1.9037e-05 TDB
node 182.3016765276049 2.26e-06 deg
peri 122.1094795463041 6.1375e-06 deg
i 11.56199426905287 5.6367e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3131  
   data-arc span      37522 days (102.73 yr)  
   first obs. used      1918-08-10  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38307  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:42:00  

Additional Information
 Jupiter MOID = 2.46489 au 
 T_jup = 3.436 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.036564347969175E-16 -2.523604667898359E-16 6.600590790849468E-14 5.310029628986222E-15 2.119831983911102E-14 1.822124745807484E-15
q -2.523604667898359E-16 6.417098107052354E-16 -1.813615927913343E-13 -1.406147846663592E-14 -5.802398569081289E-14 -4.453036258536684E-15
tp 6.600590790849468E-14 -1.813615927913343E-13 3.624135785246382E-10 9.557299546791661E-12 1.114360724459109E-10 -3.005089586688229E-12
node 5.310029628986222E-15 -1.406147846663592E-14 9.557299546791661E-12 5.107690100417004E-12 -7.991193702357662E-13 3.641622501869402E-14
peri 2.119831983911102E-14 -5.802398569081289E-14 1.114360724459109E-10 -7.991193702357662E-13 3.766948783515793E-11 -9.024857717887636E-13
i 1.822124745807484E-15 -4.453036258536684E-15 -3.005089586688229E-12 3.641622501869402E-14 -9.024857717887636E-13 3.177223138550998E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.61   n/a E2021B10 IRAS observations used: 4
diameter diameter 19.618 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.689 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Garceran, A.C.; Aznar, A.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 92-97.]
[Stoelting, M.; DeGraff, D.R. (2016) Minor Planet Bull. 43, 44-45.]
[Pilcher, F. (2020) Minor Planet Bull. 47, 34-36.]
geometric albedo albedo 0.085   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.860   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=16.14 deg.
U-B UB 0.390   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=16.14 deg.

900 Rosalinde (A918 PJ)          Discovered 1918-Aug-10 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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