ASTROSAT CZTI

Data Quality Report

Orbit 23983

Creation date: 2024-06-27T19:00:48.440320
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/AS1A07_065T01_9000003554_23983cztM0_level2.evt modeM0/AS1A07_065T01_9000003554_23983cztM0_level2_quad_clean.evt
Size (bytes)340,574,40042,359,040
Size324.8 MB 40.4 MB
Events in quadrant A1,933,279269,779
Events in quadrant B1,978,089276,194
Events in quadrant C1,993,150252,302
Events in quadrant D4,164,524229,375

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078381
B080601
C079951
D0148121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3586391.087563%
B3586350.976018%
C3587581.616950%
D358793926.177865%

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 4731 3586 0 0 0.00% 0.00%
B 4731 3587 0 0 0.00% 0.00%
C 4732 3588 6 6 0.13% 0.17%
D 4732 3587 603 603 12.74% 16.81%

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 13 254 4611 41.18 501 493 100.0
A 0 226 4414 39.21 501 493 100.0
A 3 137 3965 34.72 501 493 100.0
B 0 197 21755 228.05 493 482 93.3
B 0 230 13237 136.73 493 482 93.3
B 10 247 10772 110.31 493 482 93.3
C 0 10 110856 1028.87 463 467 107.3
C 14 238 76558 709.2 463 467 107.3
C 13 61 3193 25.41 463 467 107.3
D 12 218 2064866 20215.74 412 400 102.1
D 8 195 133777 1306.06 412 400 102.1
D 12 250 127587 1245.45 412 400 102.1

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