ASTROSAT CZTI

Data Quality Report

Orbit 00744

Creation date: 2024-06-27T14:02:22.794290
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/AS1P01_010T01_9000000108_00744cztM0_level2.evt modeM0/AS1P01_010T01_9000000108_00744cztM0_level2_quad_clean.evt
Size (bytes)882,420,48070,882,560
Size841.5 MB 67.6 MB
Events in quadrant A5,694,061467,361
Events in quadrant B6,861,902451,292
Events in quadrant C5,455,123466,233
Events in quadrant D8,381,339410,428

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204550
B0239720
C0197690
D0285320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A500030.060000%
B49992955.901180%
C499900.000000%
D500064912.980000%

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 5000 5000 49 49 0.98% 0.98%
B 4999 4999 514 514 10.28% 10.28%
C 4999 4999 37 37 0.74% 0.74%
D 5000 5000 1293 1293 25.86% 25.86%

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 15 17 20039 51.94 1470 1482 357.3
A 15 233 19596 50.7 1470 1482 357.3
A 12 236 14457 36.32 1470 1482 357.3
B 8 38 1146215 3272.75 1483 1492 349.8
B 7 221 22563 60.24 1483 1492 349.8
B 0 220 18079 47.42 1483 1492 349.8
C 15 241 39916 99.94 1372 1417 385.2
C 3 111 28195 69.52 1372 1417 385.2
C 3 79 24902 60.97 1372 1417 385.2
D 7 207 3312552 8721.46 1233 1273 379.7
D 6 226 166343 434.77 1233 1273 379.7
D 1 4 139218 363.33 1233 1273 379.7

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