ASTROSAT CZTI

Data Quality Report

Orbit 09557

Creation date: 2024-06-27T15:47:43.122605
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/AS1G07_069T01_9000001356_09557cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09557cztM0_level2_quad_clean.evt
Size (bytes)532,042,560111,332,160
Size507.4 MB 106.2 MB
Events in quadrant A4,102,631711,153
Events in quadrant B3,869,709712,591
Events in quadrant C3,473,927719,317
Events in quadrant D4,146,008695,096

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175633
B0168112
C0158352
D0176012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76761642.136529%
B7676811.055237%
C7676310.403856%
D7676801.042209%

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 7890 7676 4 4 0.05% 0.05%
B 7890 7676 3 3 0.04% 0.04%
C 7890 7676 0 0 0.00% 0.00%
D 7890 7676 23 23 0.29% 0.30%

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 262250 1418.83 900 881 184.2
A 1 178 126462 681.71 900 881 184.2
A 1 161 122388 659.59 900 881 184.2
B 4 80 130638 752.18 906 883 172.5
B 0 214 91573 525.73 906 883 172.5
B 15 204 51481 293.31 906 883 172.5
C 13 61 6614 27.76 889 890 206.2
C 14 234 5025 20.05 889 890 206.2
C 3 202 2262 6.65 889 890 206.2
D 1 52 275052 1181.42 883 863 232.1
D 8 195 157137 673.35 883 863 232.1
D 12 227 80172 341.72 883 863 232.1

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