ASTROSAT CZTI

Data Quality Report

Orbit 42692

Creation date: 2024-06-27T22:43:06.896519
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_013T01_9000005822_42692cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42692cztM0_level2_quad_clean.evt
Size (bytes)335,937,60094,881,600
Size320.4 MB 90.5 MB
Events in quadrant A3,683,994638,415
Events in quadrant B2,534,956670,492
Events in quadrant C2,812,358627,518
Events in quadrant D3,001,770574,362

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141602
B0107262
C0112822
D0122252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51661502.903600%
B5166180.348432%
C5166180.348432%
D5166551.064654%

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 7320 5167 124 124 1.69% 2.40%
B 7320 5167 10 10 0.14% 0.19%
C 7320 5167 10 10 0.14% 0.19%
D 7320 5167 46 46 0.63% 0.89%

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 13 248 577353 4672.04 607 597 123.4
A 10 83 528868 4279.29 607 597 123.4
A 7 3 209636 1693.33 607 597 123.4
B 5 172 66497 561.89 610 593 117.3
B 0 245 36976 310.2 610 593 117.3
B 0 168 14716 120.41 610 593 117.3
C 15 214 217467 1556.1 600 602 139.4
C 14 254 199084 1424.2 600 602 139.4
C 3 233 16471 113.87 600 602 139.4
D 2 249 287911 1981.95 595 578 145.0
D 1 52 195716 1346.01 595 578 145.0
D 13 249 73196 500.9 595 578 145.0

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