ASTROSAT CZTI

Data Quality Report

Orbit 30068

Creation date: 2024-06-27T20:10:33.691650
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_071T06_9000004324_30068cztM0_level2.evt modeM0/AS1A10_071T06_9000004324_30068cztM0_level2_quad_clean.evt
Size (bytes)576,095,04090,722,880
Size549.4 MB 86.5 MB
Events in quadrant A3,652,671574,083
Events in quadrant B5,760,412570,815
Events in quadrant C3,718,763544,415
Events in quadrant D3,813,311542,717

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153822
B0225132
C0154372
D0157792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74031742.350398%
B74033194.309064%
C74032303.106849%
D74031281.729029%

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 8708 7405 0 0 0.00% 0.00%
B 8708 7405 11 11 0.13% 0.15%
C 8708 7405 0 0 0.00% 0.00%
D 8708 7405 11 11 0.13% 0.15%

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 19350 97.04 942 922 189.9
A 13 254 11438 55.37 942 922 189.9
A 3 137 9761 46.54 942 922 189.9
B 6 159 2043356 11456.42 922 895 178.3
B 0 229 51107 281.65 922 895 178.3
B 4 171 29048 157.91 922 895 178.3
C 14 238 149183 706.68 895 900 209.8
C 3 233 46525 217.44 895 900 209.8
C 2 114 17501 79.12 895 900 209.8
D 8 195 156455 713.65 906 880 218.0
D 13 104 79076 358.7 906 880 218.0
D 2 250 40860 183.4 906 880 218.0

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