ASTROSAT CZTI

Data Quality Report

Orbit 33557

Creation date: 2024-06-27T20:50:08.237604
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/AS1A11_060T01_9000004808_33557cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33557cztM0_level2_quad_clean.evt
Size (bytes)511,974,72053,248,320
Size488.3 MB 50.8 MB
Events in quadrant A2,483,128315,663
Events in quadrant B4,571,812305,356
Events in quadrant C3,789,044309,431
Events in quadrant D4,291,890300,197

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109383
B0170362
C0146612
D0165012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A545070.128440%
B545069212.697248%
C54501432.623853%
D54501653.027523%

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 7093 5451 0 0 0.00% 0.00%
B 7093 5451 586 586 8.26% 10.75%
C 7093 5451 141 141 1.99% 2.59%
D 7093 5451 150 150 2.11% 2.75%

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 8659 62.78 640 627 127.9
A 3 137 6519 46.05 640 627 127.9
A 10 83 6434 45.39 640 627 127.9
B 5 172 1437253 12292.79 606 590 116.9
B 5 200 333731 2850.52 606 590 116.9
B 4 251 194771 1661.51 606 590 116.9
C 1 23 489178 3360.33 621 626 145.4
C 3 233 341575 2345.1 621 626 145.4
C 15 214 233189 1599.6 621 626 145.4
D 8 195 1138513 7472.46 615 597 152.3
D 15 0 494038 3240.32 615 597 152.3
D 1 52 111030 725.19 615 597 152.3

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