ASTROSAT CZTI

Data Quality Report

Orbit 30629

Creation date: 2024-06-27T20:17:53.924081
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/AS1A10_055T01_9000004414_30629cztM0_level2.evt modeM0/AS1A10_055T01_9000004414_30629cztM0_level2_quad_clean.evt
Size (bytes)667,578,24088,289,280
Size636.7 MB 84.2 MB
Events in quadrant A3,631,377585,581
Events in quadrant B5,324,639578,780
Events in quadrant C3,799,329551,468
Events in quadrant D7,042,936523,722

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148272
B0198062
C0155722
D0254472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62131241.995815%
B62132063.315629%
C62133565.729921%
D62135208.369548%

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 7548 6214 0 0 0.00% 0.00%
B 7548 6214 0 0 0.00% 0.00%
C 7548 6214 19 19 0.25% 0.31%
D 7548 6214 379 379 5.02% 6.10%

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 8 192 20031 105.14 932 918 181.8
A 13 254 11918 60.51 932 918 181.8
A 1 113 10403 52.18 932 918 181.8
B 6 159 1691569 10051.08 908 891 168.2
B 0 190 60805 356.19 908 891 168.2
B 12 111 19320 109.56 908 891 168.2
C 14 238 166385 837.73 873 882 197.6
C 0 10 103951 521.71 873 882 197.6
C 10 22 59268 295.53 873 882 197.6
D 8 195 2963220 14487.69 885 867 204.5
D 10 253 595347 2907.37 885 867 204.5
D 1 52 87939 425.83 885 867 204.5

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