ASTROSAT CZTI

Data Quality Report

Orbit 05056

Creation date: 2024-06-27T14:50:44.996003
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/AS1G05_218T04_9000000640_05056cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05056cztM0_level2_quad_clean.evt
Size (bytes)679,331,52073,497,600
Size647.9 MB 70.1 MB
Events in quadrant A4,491,564426,631
Events in quadrant B4,095,447425,966
Events in quadrant C4,205,421418,029
Events in quadrant D7,224,570383,524

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189723
B0177382
C0182795
D0272147

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82252753.343465%
B82252122.577508%
C82241591.933366%
D8224108613.205253%

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 8725 8228 92 92 1.05% 1.12%
B 8725 8228 9 9 0.10% 0.11%
C 8725 8228 0 0 0.00% 0.00%
D 8725 8228 838 838 9.60% 10.18%

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 15 174 455978 2240.41 984 962 203.1
A 13 251 213448 1046.24 984 962 203.1
A 0 50 32417 154.88 984 962 203.1
B 0 219 87800 449.95 994 970 193.0
B 15 204 49897 253.54 994 970 193.0
B 15 54 41224 208.6 994 970 193.0
C 1 16 446260 1989.19 952 956 223.9
C 14 67 31425 136.11 952 956 223.9
C 13 61 7737 30.29 952 956 223.9
D 13 235 3355061 14774.36 915 887 227.0
D 1 7 153225 671.01 915 887 227.0
D 13 239 76742 334.12 915 887 227.0

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