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 ]  
15704 (1987 SE7)
Classification: Main-belt Asteroid          SPK-ID: 2015704
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917127658312018 4.0823e-08  
a 2.22023911436057 7.9194e-09 au
q 1.794590932939887 8.9737e-08 au
i 4.823611520342848 3.9685e-06 deg
node 297.0563350050741 5.1887e-05 deg
peri 54.09690790288688 5.3108e-05 deg
M 323.850191164548 1.2369e-05 deg
tp 2459121.839319582713
(2020-Sep-29.33931958)
4.1738e-05 TDB
period 1208.364759233182
3.31
6.4652e-06
1.77e-08
d
yr
n .2979232862008099 1.594e-09 deg/d
Q 2.645887295781253 9.4377e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1363  
   data-arc span      23996 days (65.70 yr)  
   first obs. used      1954-10-06  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:51:48  

Additional Information
 Earth MOID = .793535 au 
 Jupiter MOID = 2.79113 au 
 T_jup = 3.621 
[ 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 15.1   n/a MPO337391  
diameter diameter 3.045 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.174   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15704 (1987 SE7)          Discovered 1987-Sep-20 by Alu, J., Helin, E. F. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 SE7 = 1977 QX4 = 1977 RK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-09 12:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin