ASTROSAT CZTI

Data Quality Report

Orbit 05484

Creation date: 2024-06-27T14:55:51.878722
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/AS1G06_139T01_9000000700_05484cztM0_level2.evt modeM0/AS1G06_139T01_9000000700_05484cztM0_level2_quad_clean.evt
Size (bytes)540,696,96088,329,600
Size515.6 MB 84.2 MB
Events in quadrant A3,381,775554,588
Events in quadrant B3,595,035560,473
Events in quadrant C3,606,708558,671
Events in quadrant D5,328,972525,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01402

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01459811
B0150958
C0152776
D02034415

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68221422.081501%
B68231432.095852%
C68241392.036928%
D68214706.890485%

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 9166 6828 0 0 0.00% 0.00%
B 9166 6828 1 1 0.01% 0.01%
C 9166 6828 39 39 0.43% 0.57%
D 9166 6828 337 337 3.68% 4.94%

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 50 27536 150.64 868 848 177.2
A 12 194 8558 43.52 868 848 177.2
A 0 226 8531 43.37 868 848 177.2
B 15 204 130111 774.83 868 848 166.8
B 11 51 33206 193.96 868 848 166.8
B 15 54 20338 116.83 868 848 166.8
C 1 241 229763 1190.57 831 835 192.3
C 9 247 87250 449.41 831 835 192.3
C 1 16 38254 194.6 831 835 192.3
D 2 152 1117928 5530.67 829 804 202.0
D 9 85 258449 1275.55 829 804 202.0
D 8 195 245653 1212.2 829 804 202.0

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