ASTROSAT CZTI

Data Quality Report

Orbit 37292

Creation date: 2024-06-27T21:38:00.362117
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/AS1A10_103T07_9000005302_37292cztM0_level2.evt modeM0/AS1A10_103T07_9000005302_37292cztM0_level2_quad_clean.evt
Size (bytes)383,031,36083,969,280
Size365.3 MB 80.1 MB
Events in quadrant A2,677,102540,509
Events in quadrant B2,657,110550,693
Events in quadrant C2,877,884556,806
Events in quadrant D3,027,828524,029

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112803
B0112662
C0117642
D0126202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5294100.188893%
B5294340.642236%
C5294811.530034%
D52941041.964488%

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 7116 5295 2 2 0.03% 0.04%
B 7116 5295 10 10 0.14% 0.19%
C 7116 5295 64 64 0.90% 1.21%
D 7116 5295 83 83 1.17% 1.57%

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 10 83 263157 2166.31 603 594 121.2
A 9 143 36624 297.27 603 594 121.2
A 13 248 11839 92.78 603 594 121.2
B 0 213 123810 1061.33 599 583 116.1
B 5 172 62786 535.74 599 583 116.1
B 0 221 55597 473.83 599 583 116.1
C 0 10 261857 1902.11 586 593 137.4
C 15 214 223229 1620.88 586 593 137.4
C 1 23 92467 668.88 586 593 137.4
D 2 249 474033 3349.72 586 571 141.3
D 10 199 95343 670.5 586 571 141.3
D 13 249 79737 560.09 586 571 141.3

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