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1364 Safara (1935 VB)
Classification: Main-belt Asteroid          SPK-ID: 2001364
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06630895884437255 3.4826e-08  
a 3.014090590595234 1.4995e-08 au
q 2.814229381670244 1.0529e-07 au
i 11.4861291126393 4.7464e-06 deg
node 63.97999847869838 2.205e-05 deg
peri 221.0391233908606 4.7498e-05 deg
M 196.4730060145445 4.3967e-05 deg
tp 2459868.700099663677
(2022-Oct-16.20009966)
0.00023484 TDB
period 1911.317686832322
5.23
1.4263e-05
3.905e-08
d
yr
n .1883517337176101 1.4055e-09 deg/d
Q 3.213951799520224 1.5989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2244  
   data-arc span      32104 days (87.90 yr)  
   first obs. used      1932-03-10  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:52:49  

Additional Information
 Earth MOID = 1.80889 au 
 Jupiter MOID = 1.87959 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456048.5 (2012-May-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06961972679426409 3.547e-08  
q 2.802252060925863 1.0796e-07 au
tp 2456035.175037486007
(2012-Apr-17.67503749)
0.00021502 TDB
node 64.22324051591939 2.204e-05 deg
peri 218.6152838518753 4.5203e-05 deg
i 11.49428384976347 4.7452e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2244  
   data-arc span      32104 days (87.90 yr)  
   first obs. used      1932-03-10  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:52:49  

Additional Information
 Jupiter MOID = 1.87959 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.258152793997188E-15 -3.797422903748058E-15 -1.532664483027239E-12 -6.570926520081115E-16 -2.633296870990075E-13 -9.622773527816982E-18
q -3.797422903748058E-15 1.165510834233899E-14 5.094708196578464E-12 7.500125184249589E-16 8.799010247833116E-13 7.131852829876432E-16
tp -1.532664483027239E-12 5.094708196578464E-12 4.623570611746853E-8 1.772824165997053E-11 8.514326991250766E-9 1.114006731434834E-11
node -6.570926520081115E-16 7.500125184249589E-16 1.772824165997053E-11 4.857775995395893E-10 -4.721183517670286E-10 -3.103942569721908E-11
peri -2.633296870990075E-13 8.799010247833116E-13 8.514326991250766E-9 -4.721183517670286E-10 2.043337611821815E-9 3.239638025428453E-11
i -9.622773527816982E-18 7.131852829876432E-16 1.114006731434834E-11 -3.103942569721908E-11 3.239638025428453E-11 2.251655609177302E-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 10.7   n/a MPO267712  
diameter diameter 21.197 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.25 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2010) Minor Planet Bull. 37, 112-118.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.]
geometric albedo albedo 0.087   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1364 Safara (1935 VB)          Discovered 1935-Nov-18 by Boyer, L. at Algiers
Discovery is clearly Nov. 18. By error the preliminary designation 1935 VB instead of a W designation was assigned.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 VB = 1932 EK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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