ASTROSAT CZTI

Data Quality Report

Orbit 11567

Creation date: 2024-06-27T16:15:10.197283
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/AS1A04_112T01_9000001698_11567cztM0_level2.evt modeM0/AS1A04_112T01_9000001698_11567cztM0_level2_quad_clean.evt
Size (bytes)638,740,80093,432,960
Size609.2 MB 89.1 MB
Events in quadrant A7,081,646562,858
Events in quadrant B4,622,725612,438
Events in quadrant C2,914,165609,492
Events in quadrant D4,278,782583,696

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256742
B0179741
C0134541
D0172471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6604109516.580860%
B66044516.829194%
C6604560.847971%
D66043174.800121%

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 7505 6606 640 640 8.53% 9.69%
B 7505 6606 234 234 3.12% 3.54%
C 7505 6606 0 0 0.00% 0.00%
D 7505 6606 166 166 2.21% 2.51%

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 8 5 3782690 25871.53 721 705 146.2
A 1 162 144893 986.35 721 705 146.2
A 15 174 102581 696.91 721 705 146.2
B 4 239 1162444 8004.32 764 745 145.1
B 15 255 170847 1172.03 764 745 145.1
B 15 204 144054 987.42 764 745 145.1
C 13 61 5620 28.5 747 750 170.9
C 3 202 1929 6.9 747 750 170.9
C 7 247 1711 5.62 747 750 170.9
D 13 137 1073745 6051.54 739 717 177.3
D 2 120 171739 964.51 739 717 177.3
D 10 253 74905 418.4 739 717 177.3

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