ASTROSAT CZTI

Data Quality Report

Orbit 22368

Creation date: 2024-06-27T18:39:54.266175
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/AS1A07_007T04_9000003310_22368cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22368cztM0_level2_quad_clean.evt
Size (bytes)621,112,320105,001,920
Size592.3 MB 100.1 MB
Events in quadrant A4,237,939651,477
Events in quadrant B4,386,526657,937
Events in quadrant C4,318,553632,606
Events in quadrant D5,261,157618,108

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185203
B0187663
C0185543
D0215403

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89243053.417750%
B89253634.067227%
C89253253.641457%
D89253503.921569%

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 9324 8926 0 0 0.00% 0.00%
B 9325 8927 11 11 0.12% 0.12%
C 9325 8927 0 0 0.00% 0.00%
D 9325 8928 121 121 1.30% 1.36%

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 13 254 12718 52.45 1095 1068 222.1
A 3 137 10072 40.53 1095 1068 222.1
A 14 254 10004 40.23 1095 1068 222.1
B 0 190 32478 148.43 1096 1066 211.6
B 12 111 26688 121.07 1096 1066 211.6
B 4 52 26636 120.83 1096 1066 211.6
C 14 238 163077 651.12 1060 1065 248.8
C 13 61 7365 25.32 1060 1065 248.8
C 7 245 6414 21.5 1060 1065 248.8
D 1 52 1021031 3944.08 1063 1028 258.6
D 10 103 123535 473.7 1063 1028 258.6
D 2 234 37589 141.37 1063 1028 258.6

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