TIM

Total Irradiance Monitoring

Satellites

SORCE and Glory

Status

Operational (on SORCE); being integrated (on Glory) – Utilised in the period 2003 to ~ 2012

Mission

Total solar irradiance monitoring

Instrument type

Assemblage of 4 active cavity radiometers. Range: 0.2-10 µm.

Scanning technique

Sun pointing during orbital movement, data sampled every 2 min

Coverage/cycle

One measurement after integration on all data taken during the diurnal orbit arc; thus 100 min

Resolution (s.s.p.)

N/A (sun pointing)

Resources

Mass: 7.9 kg - Power: 14 W - Data rate: 539 bps