ASTROSAT CZTI

Data Quality Report

Orbit 19297

Creation date: 2024-06-27T18:01:05.629244
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_204T01_9000002856_19297cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19297cztM0_level2_quad_clean.evt
Size (bytes)349,464,96046,679,040
Size333.3 MB 44.5 MB
Events in quadrant A2,173,914290,747
Events in quadrant B2,137,645294,160
Events in quadrant C2,071,775278,717
Events in quadrant D3,904,821244,066

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093561
B090832
C089471
D0147011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4338260.599355%
B4337320.737837%
C4337370.853124%
D433763414.618400%

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 5213 4339 2 2 0.04% 0.05%
B 5212 4338 0 0 0.00% 0.00%
C 5212 4338 0 0 0.00% 0.00%
D 5212 4337 381 381 7.31% 8.78%

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 4 2 113885 1029.3 534 523 110.1
A 13 254 6628 55.43 534 523 110.1
A 0 226 4665 37.61 534 523 110.1
B 0 229 27133 258.87 532 519 102.8
B 12 111 12568 117.2 532 519 102.8
B 11 111 11111 103.02 532 519 102.8
C 14 238 80078 662.38 509 513 120.1
C 13 61 3594 25.65 509 513 120.1
C 9 54 3101 21.55 509 513 120.1
D 1 52 1802835 15042.7 488 473 119.8
D 13 138 84444 700.83 488 473 119.8
D 11 176 77634 643.99 488 473 119.8

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