ASTROSAT CZTI

Data Quality Report

Orbit 30702

Creation date: 2024-06-27T20:18:38.415469
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/AS1A10_058T14_9000004430_30702cztM0_level2.evt modeM0/AS1A10_058T14_9000004430_30702cztM0_level2_quad_clean.evt
Size (bytes)4,859,951,040556,545,600
Size4.5 GB 530.8 MB
Events in quadrant A25,919,4423,589,412
Events in quadrant B35,769,9173,617,910
Events in quadrant C23,888,8873,481,893
Events in quadrant D58,622,8843,104,953

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09100
B09100
C09100
D09100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01049119
B01365889
C0986039
D02054209

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4459110562.368191%
B445917171.607948%
C4459110482.350250%
D44591516111.574084%

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 53352 44596 654 654 1.23% 1.47%
B 53352 44597 16 16 0.03% 0.04%
C 53351 44595 50 50 0.09% 0.11%
D 53352 44597 4713 4713 8.83% 10.57%

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 0 13 3558367 3127.19 5766 5662 1136.1
A 8 192 103868 86.44 5766 5662 1136.1
A 13 254 86189 70.88 5766 5662 1136.1
B 6 159 12531764 11769.71 5719 5593 1064.3
B 0 190 443508 411.47 5719 5593 1064.3
B 12 111 132209 118.97 5719 5593 1064.3
C 14 238 1000442 782.44 5517 5565 1271.5
C 3 233 845456 660.55 5517 5565 1271.5
C 0 10 196496 150.16 5517 5565 1271.5
D 8 195 32483074 25795.71 5367 5242 1259.0
D 12 218 3438836 2727.15 5367 5242 1259.0
D 12 233 564857 444.48 5367 5242 1259.0

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