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17704 (1997 UM5)
Classification: Main-belt Asteroid          SPK-ID: 2017704
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1741790614752524 3.7702e-08  
a 2.213896596662835 6.215e-09 au
q 1.828282165252847 8.3629e-08 au
i 4.533459372677267 4.8185e-06 deg
node 29.714238710471 3.9013e-05 deg
peri 220.6107529108681 4.0825e-05 deg
M 137.65833109997 1.3676e-05 deg
tp 2458740.418865870917
(2019-Sep-13.91886587)
4.4888e-05 TDB
period 1203.190587616429
3.29
5.0665e-06
1.387e-08
d
yr
n .2992044682739541 1.2599e-09 deg/d
Q 2.599511028072824 7.2975e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1804  
   data-arc span      12724 days (34.84 yr)  
   first obs. used      1986-03-12  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:10:28  

Additional Information
 Earth MOID = .815753 au 
 Jupiter MOID = 2.43772 au 
 T_jup = 3.631 
[ 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 15.17   n/a E2021B10  
diameter diameter 2.326 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.248   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17704 (1997 UM5)          Discovered 1997-Oct-21 by Spacewatch at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 UM5 = 1986 EX3 = 1999 DC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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