Microwave Limb Sounder (MLS)

MLS anomaly beginning July 18, 2019 (Julian Day 199) 17:00 UTC

The Microwave Limb Sounder (MLS) instrument encountered an anomaly in the 190-GHz (R2) receiver, similar to one experienced in October 2012. MLS H2O and N2O data products are being marked with status bits "Do not use".

The R2 receiver is expected to be powered off until at least the middle of next week (July 24, 2019) while the science team investigates this anomaly. Temperature changes in the instrument may have subtle impact on other products during this period.

The Microwave Limb Sounder (MLS) is an instrument on the Aura satellite.

MLS / Aura - Collection 4

(HTTPS download link)
Volume (GB/day) Browse
ML2CO_NRT.004 Carbon Monoxide (CO) MLS/Aura NRT L2 CO Mixing Ratio 0.03 N/A
ML2H2O_NRT.004 Water Vapor (H2O) MLS/Aura NRT L2 H2O Mixing Ratio 0.03 N/A
ML2HNO3_NRT.004 Nitric Acid (HNO3) MLS/Aura NRT L2 HNO3 Mixing Ratio 0.03 N/A
ML2N2O_NRT.004 Nitrous Oxide (N2O) MLS/Aura NRT L2 N2O Mixing Ratio 0.03 N/A
ML2O3_NRT.004 Ozone (O3) MLS/Aura NRT L2 O3 Mixing Ratio 0.03 N/A
ML2SO2_NRT.004 Sulfur Dioxide (SO2) MLS/Aura NRT L2 SO2 Mixing Ratio 0.02 N/A
ML2T_NRT.004 Temperature MLS/Aura NRT L2 Temperature 0.03 N/A

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Last Updated: Jul 22, 2019 at 10:03 AM EDT