ASTROSAT CZTI

Data Quality Report

Orbit 26513

Creation date: 2024-06-27T19:29:55.452052
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_019T04_9000003838_26513cztM0_level2.evt modeM0/AS1C05_019T04_9000003838_26513cztM0_level2_quad_clean.evt
Size (bytes)383,878,08082,370,880
Size366.1 MB 78.6 MB
Events in quadrant A2,102,492568,602
Events in quadrant B3,697,475555,599
Events in quadrant C2,291,850544,212
Events in quadrant D3,247,936529,401

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088960
B0139790
C093490
D0124880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4210451.068884%
B42101764.180523%
C4210751.781473%
D42102846.745843%

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 5205 4210 0 0 0.00% 0.00%
B 5205 4211 99 99 1.90% 2.35%
C 5205 4211 9 9 0.17% 0.21%
D 5205 4210 216 216 4.15% 5.13%

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 6 16 74894 708.67 522 513 105.0
A 13 170 12754 116.63 522 513 105.0
A 13 254 6349 55.6 522 513 105.0
B 7 205 1012714 10381.34 513 501 97.5
B 0 189 641807 6577.29 513 501 97.5
B 0 190 14823 146.89 513 501 97.5
C 3 233 144991 1225.29 500 501 117.9
C 14 176 88480 746.07 500 501 117.9
C 14 238 79543 670.28 500 501 117.9
D 7 80 796984 6583.19 497 485 121.0
D 1 52 510601 4216.19 497 485 121.0
D 12 233 25918 210.21 497 485 121.0

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