ASTROSAT CZTI

Data Quality Report

Orbit 19386

Creation date: 2024-06-27T18:02:24.161776
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_227T03_9000002872_19386cztM0_level2.evt modeM0/AS1A05_227T03_9000002872_19386cztM0_level2_quad_clean.evt
Size (bytes)545,999,04056,908,800
Size520.7 MB 54.3 MB
Events in quadrant A2,075,965411,936
Events in quadrant B2,219,889417,762
Events in quadrant C2,060,739398,046
Events in quadrant D9,888,018192,946

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088942
B092782
C088493
D0322682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4273571.333957%
B42731102.574304%
C42721042.434457%
D4272386290.402622%

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 4383 4275 0 0 0.00% 0.00%
B 4383 4274 4 4 0.09% 0.09%
C 4382 4274 0 0 0.00% 0.00%
D 4381 4271 3515 3515 80.23% 82.30%

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 5 16 10697 92.67 534 521 109.8
A 13 254 5253 43.09 534 521 109.8
A 11 29 4929 40.14 534 521 109.8
B 15 32 47183 452.96 532 518 103.0
B 7 220 22958 217.82 532 518 103.0
B 4 216 17256 162.47 532 518 103.0
C 14 238 78136 651.64 506 509 119.1
C 3 233 7294 56.96 506 509 119.1
C 13 61 3595 25.91 506 509 119.1
D 10 66 6521099 81240.66 320 309 80.3
D 7 238 1915792 23864.45 320 309 80.3
D 1 52 162545 2021.25 320 309 80.3

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