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 ]  
2394 Nadeev (1973 SZ2)
Classification: Main-belt Asteroid          SPK-ID: 2002394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2140129259955888 2.8627e-08  
a 3.174115537068253 1.2483e-08 au
q 2.494813783532217 9.1501e-08 au
i 1.62746626785593 3.498e-06 deg
node 127.5358163561554 0.00012444 deg
peri 300.7243481905796 0.00012475 deg
M 100.2022678058573 8.2702e-06 deg
tp 2458821.579793088149
(2019-Dec-04.07979309)
4.6825e-05 TDB
period 2065.534832896945
5.66
1.2185e-05
3.336e-08
d
yr
n .1742889997623978 1.0281e-09 deg/d
Q 3.85341729060429 1.5154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3091  
   data-arc span      19156 days (52.45 yr)  
   first obs. used      1969-01-15  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 21:38:45  

Additional Information
 Earth MOID = 1.50919 au 
 Jupiter MOID = 1.46498 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2120975053449606 2.8595e-08  
q 2.504200532505122 9.1552e-08 au
tp 2456758.883348171424
(2014-Apr-11.38334817)
4.7407e-05 TDB
node 127.5282298364563 0.00012435 deg
peri 301.3819750680035 0.00012466 deg
i 1.627082551914571 3.4978e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3091  
   data-arc span      19156 days (52.45 yr)  
   first obs. used      1969-01-15  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 21:38:45  

Additional Information
 Jupiter MOID = 1.46498 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.176635027348367E-16 -2.60245988840948E-15 -1.41536437970962E-13 -4.230843334136059E-15 -4.006731478194713E-14 -1.326654326806554E-16
q -2.60245988840948E-15 8.381855124491298E-15 3.643264347541939E-13 1.335314072687616E-14 1.14988758826686E-13 4.557763775904875E-16
tp -1.41536437970962E-13 3.643264347541939E-13 2.247455424629315E-9 -3.716108567142753E-13 4.337068264141897E-10 -1.444116599251536E-13
node -4.230843334136059E-15 1.335314072687616E-14 -3.716108567142753E-13 1.546322141734028E-8 -1.545668507483174E-8 7.128438406784527E-11
peri -4.006731478194713E-14 1.14988758826686E-13 4.337068264141897E-10 -1.545668507483174E-8 1.554060595382943E-8 -7.127830206114611E-11
i -1.326654326806554E-16 4.557763775904875E-16 -1.444116599251536E-13 7.128438406784527E-11 -7.127830206114611E-11 1.223456749843269E-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 12.00   n/a E2021B10  
diameter diameter 22.518 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.5400 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.063   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2394 Nadeev (1973 SZ2)          Discovered 1973-Sep-22 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1973 SZ2 = 1950 TH4 = 1969 AR = 1975 BT = 1978 PC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-04 20:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin