ASTROSAT CZTI

Data Quality Report

Orbit 17573

Creation date: 2024-06-27T17:38:09.299375
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_012T02_9000002602_17573cztM0_level2.evt modeM0/AS1A05_012T02_9000002602_17573cztM0_level2_quad_clean.evt
Size (bytes)408,651,84053,308,800
Size389.7 MB 50.8 MB
Events in quadrant A5,539,123334,090
Events in quadrant B2,139,525343,412
Events in quadrant C2,012,668325,136
Events in quadrant D2,407,310323,936

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192711
B087651
C082961
D097501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4073150436.926099%
B4073431.055733%
C4073160.392831%
D4073290.712006%

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 4073 4073 1324 1324 32.51% 32.51%
B 4073 4073 19 19 0.47% 0.47%
C 4073 4073 0 0 0.00% 0.00%
D 4073 4073 25 25 0.61% 0.61%

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 14 237 3802457 43847.99 436 428 86.7
A 15 174 59604 682.46 436 428 86.7
A 0 226 3887 39.89 436 428 86.7
B 7 220 110569 1166.72 503 493 94.3
B 0 230 17887 184.36 503 493 94.3
B 12 111 10434 105.37 503 493 94.3
C 14 238 75681 679.38 479 481 110.7
C 3 233 41942 374.57 479 481 110.7
C 5 218 16440 144.18 479 481 110.7
D 15 0 236274 1966.54 493 479 119.9
D 13 189 180563 1501.91 493 479 119.9
D 12 233 48302 398.85 493 479 119.9

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