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41049 Van Citters (1999 VC9)
Classification: Main-belt Asteroid          SPK-ID: 2041049
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2526904893694672 4.1223e-08  
a 2.755770893529791 1.6137e-08 au
q 2.059413797853614 1.1625e-07 au
i 14.51647155296004 4.2626e-06 deg
node 74.62014257518582 1.8997e-05 deg
peri 274.7573079747252 2.0575e-05 deg
M 239.8689354247336 1.0587e-05 deg
tp 2459758.091205121916
(2022-Jun-27.59120512)
5.1755e-05 TDB
period 1670.948597297442
4.57
1.4677e-05
4.018e-08
d
yr
n .215446483860878 1.8924e-09 deg/d
Q 3.452127989205968 2.0215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1248  
   data-arc span      10198 days (27.92 yr)  
   first obs. used      1993-04-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:56:31  

Additional Information
 Earth MOID = 1.11257 au 
 Jupiter MOID = 2.22065 au 
 T_jup = 3.251 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457095.5 (2015-Mar-14.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2497155282983356 4.1073e-08  
q 2.072131812078444 1.1567e-07 au
tp 2456410.531274791949
(2013-Apr-28.03127479)
4.3624e-05 TDB
node 74.83323899668051 1.8986e-05 deg
peri 274.3391430882079 2.063e-05 deg
i 14.50579526054438 4.261e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1248  
   data-arc span      10198 days (27.92 yr)  
   first obs. used      1993-04-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:56:31  

Additional Information
 Jupiter MOID = 2.22065 au 
 T_jup = 3.251 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.687026289884357E-15 -4.725219164620533E-15 -2.400414100375023E-13 1.016201915206568E-14 -6.974388000521281E-14 2.085207817977949E-15
q -4.725219164620533E-15 1.337984451063503E-14 6.563317324576637E-13 -2.841156384399862E-14 2.034265190024337E-13 -6.046315743584804E-15
tp -2.400414100375023E-13 6.563317324576637E-13 1.903028899469103E-9 -2.588877370857221E-12 3.826482055701011E-10 2.71969094125362E-12
node 1.016201915206568E-14 -2.841156384399862E-14 -2.588877370857221E-12 3.604524989899082E-10 -3.493928261202981E-10 6.312166159851986E-12
peri -6.974388000521281E-14 2.034265190024337E-13 3.826482055701011E-10 -3.493928261202981E-10 4.25604267954963E-10 -5.5916814755252E-12
i 2.085207817977949E-15 -6.046315743584804E-15 2.71969094125362E-12 6.312166159851986E-12 -5.5916814755252E-12 1.815584491248929E-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 13.91   n/a E2021B10  
diameter diameter 4.299 km 0.950 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.347   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

41049 Van Citters           Discovered 1999 Nov. 9 by C. W. Juels at Fountain Hills.
G. Wayne Van Citters (b. 1947) is the astronomical sciences division director at the U.S. National Science Foundation, and the NSF project manager for the Gemini Observatory. His interests include high energy astrophysics, high speed photometry and polarization.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 1999 VC9 = 1998 KZ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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