481817 (2008 UL90)

2008UL90

Data

Number 481817
Provisional Designation 2008 UL90
Type Atira, NEO, PHA
Diameter 0.654 km
Absolute Magnitude, H 18.6
Eccentricity 0.3799
Semi-major axis 0.695 au
Inclination 24.31 °
Discovery Date 2008-10-26
Discovery Means Mt. Lemmon Survey at Mount Lemmon

Radar Experiments

Doppler-Only (Continuous Wave) Echo Power Spectra

2016-12-21

2016-12-21, 2008UL90.2016Dec21.p0139Hz.cw.png

2016-12-20

2016-12-20, 2008UL90.2016Dec20.p0152Hz.cw.png

2016-12-19

2016-12-19, 2008UL90.2016Dec19.p0167Hz.cw.png

Delay-Doppler Images

2016-12-21

2016-12-21, 2008UL90.p05.2016dec21.png

2016-12-20

2016-12-20, 2008UL90.p05.2016dec20.png

2016-12-20

2016-12-20, 2008UL90.p5.2016dec20.png

2016-12-21, 2008UL90.2016Dec21.p0139Hz.cw.png

Description

Echo power spectrum obtained on 2016-12-21 smoothed to a frequency resolution of 0.014 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.18.

Observation Date: 2016-12-21 (19:02:30-19:19:42)

Resolution: 0.014 Hz

Polarization Ratio: 0.18

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2016-12-20, 2008UL90.2016Dec20.p0152Hz.cw.png

Description

Echo power spectrum obtained on 2016-12-20 smoothed to a frequency resolution of 0.015 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.33.

Observation Date: 2016-12-20 (19:56:38-20:07:36)

Resolution: 0.015 Hz

Polarization Ratio: 0.33

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2016-12-19, 2008UL90.2016Dec19.p0167Hz.cw.png

Description

Echo power spectrum obtained on 2016-12-19 smoothed to a frequency resolution of 0.017 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.02.

Observation Date: 2016-12-19 (19:48:25-19:49:25)

Resolution: 0.017 Hz

Polarization Ratio: 0.02

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2016-12-21, 2008UL90.p05.2016dec21.png

Description

Delay-Doppler radar image obtained on 2016-12-21. The spatial resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2016-12-21 (19:25:47-21:36:21)

Resolution, Delay Axis: 7.5 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2016-12-20, 2008UL90.p05.2016dec20.png

Description

Delay-Doppler radar image obtained on 2016-12-20. The spatial resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2016-12-20 (20:33:28-21:33:46)

Resolution, Delay Axis: 7.5 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2016-12-20, 2008UL90.p5.2016dec20.png

Description

Delay-Doppler radar image obtained on 2016-12-20. The spatial resolution is 75 m per pixel vertically along the delay axis and 0.5 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2016-12-20 (20:13:33-20:24:31)

Resolution, Delay Axis: 75 m/px

Resolution, Doppler Axis: 0.5 Hz/px

Download Options:

Additional Information


  • NASA Jet Propulsion Laboratory Small-Body Database entry

 

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