ASTROSAT CZTI

Data Quality Report

Orbit 06325

Creation date: 2024-06-27T15:05:41.647265
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/AS1G06_028T01_9000000834_06325cztM0_level2.evt modeM0/AS1G06_028T01_9000000834_06325cztM0_level2_quad_clean.evt
Size (bytes)517,919,04097,395,840
Size493.9 MB 92.9 MB
Events in quadrant A2,951,850662,030
Events in quadrant B4,077,113642,543
Events in quadrant C2,875,219639,926
Events in quadrant D5,386,489598,191

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123782
B0157921
C0123641
D0200351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58301282.195540%
B58304247.272727%
C58301051.801029%
D58302233.825043%

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 7065 5831 4 4 0.06% 0.07%
B 7065 5831 283 283 4.01% 4.85%
C 7065 5831 31 31 0.44% 0.53%
D 7065 5831 166 166 2.35% 2.85%

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 14 111 52065 341.94 732 719 150.2
A 13 251 48666 319.31 732 719 150.2
A 8 15 25919 167.82 732 719 150.2
B 3 64 1168851 8569.74 713 701 136.3
B 4 81 121698 887.65 713 701 136.3
B 15 204 30099 215.67 713 701 136.3
C 4 254 139372 866.87 695 701 160.0
C 9 16 21895 132.49 695 701 160.0
C 13 61 5519 30.12 695 701 160.0
D 12 221 1700564 9823.55 700 681 173.0
D 12 220 726825 4196.36 700 681 173.0
D 4 95 86720 497.22 700 681 173.0

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