ASTROSAT CZTI

Data Quality Report

Orbit 15290

Creation date: 2024-06-27T17:06:19.748568
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/AS1A04_223T01_9000002258_15290cztM0_level2.evt modeM0/AS1A04_223T01_9000002258_15290cztM0_level2_quad_clean.evt
Size (bytes)558,593,280103,213,440
Size532.7 MB 98.4 MB
Events in quadrant A3,869,955643,109
Events in quadrant B4,190,449654,406
Events in quadrant C4,077,497640,952
Events in quadrant D4,216,741611,601

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170903
B0177222
C0173242
D0183962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8285660.796620%
B82851201.448401%
C8285410.494870%
D8285951.146651%

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 8976 8288 0 0 0.00% 0.00%
B 8976 8288 11 11 0.12% 0.13%
C 8976 8288 0 0 0.00% 0.00%
D 8976 8288 59 59 0.66% 0.71%

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 9 143 15797 72.56 1001 978 204.2
A 0 226 8821 38.4 1001 978 204.2
A 12 194 7352 31.21 1001 978 204.2
B 0 229 84759 426.87 1007 981 196.3
B 3 209 28714 141.31 1007 981 196.3
B 0 197 27044 132.8 1007 981 196.3
C 3 233 286172 1260.56 971 977 226.2
C 13 61 7072 26.94 971 977 226.2
C 7 247 3131 9.52 971 977 226.2
D 2 33 271643 1133.6 965 938 238.8
D 12 110 128089 532.46 965 938 238.8
D 7 38 75187 310.92 965 938 238.8

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