ASTROSAT CZTI

Data Quality Report

Orbit 20653

Creation date: 2024-06-27T18:17:52.927904
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/AS1A05_082T09_9000003054_20653cztM0_level2.evt modeM0/AS1A05_082T09_9000003054_20653cztM0_level2_quad_clean.evt
Size (bytes)460,408,32095,696,640
Size439.1 MB 91.3 MB
Events in quadrant A2,855,954655,657
Events in quadrant B3,447,731647,608
Events in quadrant C2,943,812614,154
Events in quadrant D4,310,314583,438

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121111
B0140191
C0122632
D0166351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5678571.003875%
B56791061.866526%
C5678971.708348%
D56784287.537865%

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 6873 5679 0 0 0.00% 0.00%
B 6874 5680 22 22 0.32% 0.39%
C 6873 5678 10 10 0.15% 0.18%
D 6873 5679 235 235 3.42% 4.14%

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 0 226 6651 39.91 741 726 148.5
A 12 194 5755 33.87 741 726 148.5
A 3 137 5446 31.79 741 726 148.5
B 7 220 296785 2139.67 729 712 138.4
B 0 190 75701 541.93 729 712 138.4
B 4 216 71847 514.08 729 712 138.4
C 14 238 109290 673.63 695 700 161.2
C 9 54 42751 260.86 695 700 161.2
C 0 207 26743 161.55 695 700 161.2
D 1 52 1284648 7552.43 696 677 170.0
D 7 238 135167 791.08 696 677 170.0
D 13 153 57930 336.77 696 677 170.0

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