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 ]  
21974 (1999 XV1)
Classification: Main-belt Asteroid          SPK-ID: 2021974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028672515095054 2.4563e-08  
a 2.652746955012566 9.2159e-09 au
q 2.379866166800214 6.8377e-08 au
i 5.162077142673641 6.0508e-07 deg
node 93.754770950455 1.2101e-05 deg
peri 308.9253071587634 1.4717e-05 deg
M 325.5638686428086 1.1511e-05 deg
tp 2459351.457265039430
(2021-May-16.95726504)
5.0587e-05 TDB
period 1578.127776622212
4.32
8.2239e-06
2.252e-08
d
yr
n .2281184105196702 1.1888e-09 deg/d
Q 2.925627743224919 1.0164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2326  
   data-arc span      13929 days (38.14 yr)  
   first obs. used      1982-12-23  
   last obs. used      2021-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 03:06:32  

Additional Information
 Earth MOID = 1.39196 au 
 Jupiter MOID = 2.42503 au 
 T_jup = 3.376 
[ 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 13.54   n/a E2021B10  
diameter diameter 5.232 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.249   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21974 (1999 XV1)          Discovered 1999-Dec-03 by Juels, C. W. at Fountain Hills
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XV1 = 1982 YQ4 = 1998 ME28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-13 06:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin