ASTROSAT CZTI

Data Quality Report

Orbit 22589

Creation date: 2024-06-27T18:43:15.275319
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/AS1C05_001T01_9000003354_22589cztM0_level2.evt modeM0/AS1C05_001T01_9000003354_22589cztM0_level2_quad_clean.evt
Size (bytes)485,115,840130,328,640
Size462.6 MB 124.3 MB
Events in quadrant A3,182,392882,228
Events in quadrant B3,572,251893,704
Events in quadrant C3,345,900857,267
Events in quadrant D4,125,807836,778

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139292
B0149152
C0144392
D0168462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6850490.715328%
B68501061.547445%
C6850961.401460%
D68501792.613139%

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 7745 6851 0 0 0.00% 0.00%
B 7745 6851 25 25 0.32% 0.36%
C 7745 6851 0 0 0.00% 0.00%
D 7745 6851 144 144 1.86% 2.10%

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 10854 60.54 823 804 166.0
A 11 47 7413 39.81 823 804 166.0
A 0 226 7043 37.58 823 804 166.0
B 15 33 289418 1844.93 820 798 156.4
B 0 230 23470 144.92 820 798 156.4
B 12 111 18733 114.64 820 798 156.4
C 14 238 126192 675.36 796 799 185.7
C 10 22 67985 361.86 796 799 185.7
C 10 222 44332 234.47 796 799 185.7
D 1 52 923594 4732.53 803 778 195.0
D 12 227 80100 406.79 803 778 195.0
D 13 249 34924 175.11 803 778 195.0

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