ASTROSAT CZTI

Data Quality Report

Orbit 13562

Creation date: 2024-06-27T16:42:41.586147
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A04_180T01_9000002000_13562cztM0_level2.evt modeM0/AS1A04_180T01_9000002000_13562cztM0_level2_quad_clean.evt
Size (bytes)424,177,92078,125,760
Size404.5 MB 74.5 MB
Events in quadrant A2,849,468507,628
Events in quadrant B3,060,656506,374
Events in quadrant C2,980,419499,093
Events in quadrant D3,584,794470,510

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114842
B0122071
C0118791
D0140151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5462721.318198%
B54621081.977298%
C5462470.860491%
D54621973.606737%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6738 5463 1 1 0.01% 0.02%
B 6738 5463 20 20 0.30% 0.37%
C 6738 5463 0 0 0.00% 0.00%
D 6738 5463 164 164 2.43% 3.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 1 162 15948 103.29 731 718 147.5
A 4 2 7740 47.62 731 718 147.5
A 10 229 7519 46.12 731 718 147.5
B 3 64 103456 752.01 719 703 136.6
B 3 209 41303 297.14 719 703 136.6
B 0 197 37054 266.04 719 703 136.6
C 3 233 259951 1621.97 697 702 159.8
C 13 61 5030 27.08 697 702 159.8
C 0 207 2839 13.37 697 702 159.8
D 5 222 484939 2921.64 698 682 165.7
D 8 195 150291 902.63 698 682 165.7
D 13 249 89342 534.91 698 682 165.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter