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 ]  
2422 Perovskaya (1968 HK1)
Classification: Main-belt Asteroid          SPK-ID: 2002422
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968093635849294 2.2164e-08  
a 2.329679778283061 5.699e-09 au
q 1.871176983762492 5.2902e-08 au
i 6.406966277808877 1.5351e-06 deg
node 159.9249280969934 6.4249e-06 deg
peri 52.11926582191004 8.066e-06 deg
M 297.2296999888334 6.3167e-06 deg
tp 2459426.961549995548
(2021-Jul-31.46155000)
2.3288e-05 TDB
period 1298.801471139919
3.56
4.7658e-06
1.305e-08
d
yr
n .2771786204430758 1.0171e-09 deg/d
Q 2.788182572803629 6.8207e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2676  
   data-arc span      28484 days (77.98 yr)  
   first obs. used      1943-03-27  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:14:30  

Additional Information
 Earth MOID = .873224 au 
 Jupiter MOID = 2.18569 au 
 T_jup = 3.537 
[ 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 13.25   n/a MPCxxxxx  
diameter diameter 5.627 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 40. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.186   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

2422 Perovskaya (1968 HK1)          Discovered 1968-Apr-28 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1968 HK1 = 1929 JE = 1936 HF = 1943 GU = 1950 EO = 1950 HO = 1975 GB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-15 04:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin