ASTROSAT CZTI

Data Quality Report

Orbit 10025

Creation date: 2024-06-27T15:53:53.196911
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/AS1G07_022T02_9000001434_10025cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10025cztM0_level2_quad_clean.evt
Size (bytes)397,909,44068,970,240
Size379.5 MB 65.8 MB
Events in quadrant A2,321,688457,826
Events in quadrant B4,289,902388,517
Events in quadrant C2,254,352477,590
Events in quadrant D2,853,055423,294

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03215621828
B04222426406
C03212221822
D04025828882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02313
B02514
C02312
D02210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0319221
B0321229
C0322206
D0321223

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5050450.891089%
B447668715.348525%
C5059430.849970%
D4718781.653243%

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 18291 6351 0 0 0.00% 0.00%
B 18105 5819 382 382 2.11% 6.56%
C 18498 6308 0 0 0.00% 0.00%
D 18036 5965 12 12 0.07% 0.20%

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 8 15 52225 429.42 583 570 120.3
A 15 239 21077 170.48 583 570 120.3
A 0 226 5361 39.83 583 570 120.3
B 4 81 2261090 23699.22 496 484 95.4
B 0 214 30706 316.83 496 484 95.4
B 0 187 16864 171.72 496 484 95.4
C 14 67 15476 111.4 572 574 133.8
C 13 61 4271 27.64 572 574 133.8
C 8 128 4093 26.31 572 574 133.8
D 8 195 403700 3077.28 528 515 131.0
D 1 52 266348 2028.95 528 515 131.0
D 2 16 77501 587.59 528 515 131.0

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