ASTROSAT CZTI

Data Quality Report

Orbit 39029

Creation date: 2024-06-27T21:59:19.585944
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/AS1A12_042T01_9000005428_39029cztM0_level2.fits modeM0/AS1A12_042T01_9000005428_39029cztM0_level2_quad_clean.evt
Size (bytes)285,742,08079,646,400
Size272.5 MB 76.0 MB
Events in quadrant A3,537,504512,241
Events in quadrant B2,007,713551,446
Events in quadrant C2,149,144532,456
Events in quadrant D2,523,692491,863

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135612
B092981
C092791
D0105741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A46012846.172571%
B460120.043469%
C460130.065203%
D4601611.325799%

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 6634 4602 263 263 3.96% 5.71%
B 6634 4602 0 0 0.00% 0.00%
C 6634 4602 0 0 0.00% 0.00%
D 6634 4602 64 64 0.96% 1.39%

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 15 222 1165396 11799.1 485 476 98.7
A 10 83 299652 3030.26 485 476 98.7
A 13 248 151920 1533.93 485 476 98.7
B 5 172 38707 402.13 497 483 95.1
B 12 111 11728 118.3 497 483 95.1
B 0 230 10984 110.47 497 483 95.1
C 15 214 189956 1641.1 493 496 115.4
C 9 54 12714 105.83 493 496 115.4
C 15 159 7097 57.18 493 496 115.4
D 12 235 210905 1780.6 486 473 118.2
D 12 227 130378 1099.21 486 473 118.2
D 13 249 103557 872.26 486 473 118.2

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