Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
4892 Chrispollas (1985 TV2)
Classification: Main-belt Asteroid          SPK-ID: 2004892
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09880543291105082 3.1195e-08  
a 2.335825270976086 6.5394e-09 au
q 2.105033043872722 7.2138e-08 au
i 8.571902290597512 3.1644e-06 deg
node 211.719153567712 2.2144e-05 deg
peri 307.9750864529335 2.7111e-05 deg
M 121.8498575729006 1.6433e-05 deg
tp 2458559.151676685572
(2019-Mar-16.65167669)
5.9137e-05 TDB
period 1303.944046862228
3.57
5.4758e-06
1.499e-08
d
yr
n .2760854661411993 1.1594e-09 deg/d
Q 2.566617498079451 7.1855e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2803  
   data-arc span      21963 days (60.13 yr)  
   first obs. used      1960-09-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:19:48  

Additional Information
 Earth MOID = 1.12371 au 
 Jupiter MOID = 2.43692 au 
 T_jup = 3.546 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457023.5 (2015-Jan-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09917252639054415 3.1137e-08  
q 2.103011814138207 7.2044e-08 au
tp 2457255.388300783645
(2015-Aug-20.88830078)
5.8086e-05 TDB
node 211.7949097048674 2.2141e-05 deg
peri 307.7096000025504 2.7107e-05 deg
i 8.573494880108505 3.165e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2803  
   data-arc span      21963 days (60.13 yr)  
   first obs. used      1960-09-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:19:48  

Additional Information
 Jupiter MOID = 2.43692 au 
 T_jup = 3.546 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.695020201743729E-16 -2.23598930841949E-15 2.378552671075275E-14 -3.5594698444122E-15 -1.079579817106931E-16 5.669060435000313E-16
q -2.23598930841949E-15 5.190401036328368E-15 -1.683179086875075E-14 8.657692037938617E-15 7.9941770538486E-15 -1.306675657165419E-15
tp 2.378552671075275E-14 -1.683179086875075E-14 3.374006141084445E-9 -4.057324318811006E-12 9.193607489040158E-10 -9.216293753179296E-13
node -3.5594698444122E-15 8.657692037938617E-15 -4.057324318811006E-12 4.902360389933042E-10 -4.854268321241553E-10 -4.666641156020883E-12
peri -1.079579817106931E-16 7.9941770538486E-15 9.193607489040158E-10 -4.854268321241553E-10 7.347919258495908E-10 4.358214601809101E-12
i 5.669060435000313E-16 -1.306675657165419E-15 -9.216293753179296E-13 -4.666641156020883E-12 4.358214601809101E-12 1.001741675989486E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO384798  
diameter diameter 7.284 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 1584. 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:
[Stephens, R.D.; Warner, B.D. (2019) Minor Planet Bull. 46, 449-456.]
geometric albedo albedo 0.282   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4892 Chrispollas (1985 TV2)          Discovered 1985-Oct-11 by CERGA at Caussols
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 TV2 = 1964 WE = 1978 TT9 = 1981 RY = 1989 VB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-18 08:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin