ASTROSAT CZTI

Data Quality Report

Orbit 09970

Creation date: 2024-06-27T15:53:07.871808
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/AS1G07_047T01_9000001424_09970cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09970cztM0_level2_quad_clean.evt
Size (bytes)517,550,400101,813,760
Size493.6 MB 97.1 MB
Events in quadrant A3,251,218671,091
Events in quadrant B3,628,834677,071
Events in quadrant C3,040,811663,954
Events in quadrant D5,305,412610,914

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141873
B0152592
C0136452
D0203552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6600661.000000%
B6600961.454545%
C6600330.500000%
D66004386.636364%

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 7770 6600 4 4 0.05% 0.06%
B 7770 6600 33 33 0.42% 0.50%
C 7770 6600 0 0 0.00% 0.00%
D 7770 6600 360 360 4.63% 5.45%

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 13 251 67861 402.21 814 797 166.7
A 8 15 31884 186.44 814 797 166.7
A 15 174 17288 98.9 814 797 166.7
B 4 81 223117 1434.95 811 794 154.9
B 0 219 50784 322.65 811 794 154.9
B 5 32 44609 282.8 811 794 154.9
C 13 61 5775 27.97 776 781 178.6
C 8 222 4643 21.63 776 781 178.6
C 14 67 4056 18.34 776 781 178.6
D 1 52 1136384 5585.5 759 740 203.3
D 2 33 549797 2700.46 759 740 203.3
D 2 16 219587 1076.37 759 740 203.3

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