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615 Roswitha (A906 TF)
Classification: Main-belt Asteroid          SPK-ID: 2000615
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101842564706429 3.5023e-08  
a 2.633080830579558 7.5274e-09 au
q 2.342956777035047 9.3021e-08 au
i 2.761498564215513 3.6432e-06 deg
node 13.42584236835913 7.7556e-05 deg
peri 247.5583901130822 7.9247e-05 deg
M 26.89389986132055 1.6515e-05 deg
tp 2459083.914108884413
(2020-Aug-22.41410888)
7.1551e-05 TDB
period 1560.61118015744
4.27
6.6922e-06
1.832e-08
d
yr
n .2306788549109855 9.8919e-10 deg/d
Q 2.92320488412407 8.3568e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3391  
   data-arc span      43065 days (117.91 yr)  
   first obs. used      1902-11-21  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:27:39  

Additional Information
 Earth MOID = 1.3276 au 
 Jupiter MOID = 2.13309 au 
 T_jup = 3.389 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.28   n/a E2021B10  
diameter diameter 48.626 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.422 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, M.; Krugly, Y.N.; et al. (2008) Icarus 196, 601-611.]
geometric albedo albedo 0.020   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.708   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.38, mean=5.43, max.=8.10) deg.
U-B UB 0.315   0.054 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.38, mean=4.09, max.=4.80) deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

615 Roswitha (A906 TF)          Discovered 1906-Oct-11 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A906 TF = A902 WF = A902 YA = A908 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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