ASTROSAT CZTI

Data Quality Report

Orbit 03126

Creation date: 2024-06-27T14:24:59.392199
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/AS1T01_118T01_9000000430_03126cztM0_level2.evt modeM0/AS1T01_118T01_9000000430_03126cztM0_level2_quad_clean.evt
Size (bytes)303,952,32047,882,880
Size289.9 MB 45.7 MB
Events in quadrant A2,171,097312,807
Events in quadrant B1,621,203330,121
Events in quadrant C3,685,858281,077
Events in quadrant D1,518,915308,392

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084082
B066171
C0130541
D065151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30422468.086785%
B3042401.314924%
C304253617.619987%
D3042290.953320%

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 4347 3043 134 134 3.08% 4.40%
B 4347 3043 8 8 0.18% 0.26%
C 4347 3043 464 464 10.67% 15.25%
D 4347 3043 3 3 0.07% 0.10%

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 0 13 441908 5661.72 376 367 78.0
A 12 247 258424 3308.97 376 367 78.0
A 0 166 11148 138.24 376 367 78.0
B 4 81 64270 835.58 391 383 76.5
B 15 85 11110 140.3 391 383 76.5
B 2 249 9086 113.83 391 383 76.5
C 0 219 2105214 25423.57 348 349 82.8
C 5 250 69570 836.08 348 349 82.8
C 0 235 48506 581.66 348 349 82.8
D 13 120 21054 224.91 374 363 92.0
D 13 114 19214 204.91 374 363 92.0
D 2 136 18411 196.18 374 363 92.0

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