ASTROSAT CZTI

Data Quality Report

Orbit 03402

Creation date: 2024-06-27T14:28:32.125315
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/AS1G05_210T01_9000000454_03402cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03402cztM0_level2_quad_clean.evt
Size (bytes)479,903,04076,469,760
Size457.7 MB 72.9 MB
Events in quadrant A2,978,600473,702
Events in quadrant B3,494,243482,057
Events in quadrant C4,800,436459,787
Events in quadrant D2,825,817453,331

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133723
B0145492
C0186742
D0132782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6407570.889652%
B6407941.467145%
C64075498.568753%
D6407340.530670%

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 8972 6409 3 3 0.03% 0.05%
B 8972 6409 0 0 0.00% 0.00%
C 8972 6409 378 378 4.21% 5.90%
D 8972 6409 2 2 0.02% 0.03%

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 31 36672 232.99 752 736 154.2
A 0 118 35646 226.34 752 736 154.2
A 0 226 11055 66.9 752 736 154.2
B 15 204 473373 3196.43 768 749 147.9
B 14 167 24474 160.46 768 749 147.9
B 0 229 16752 108.23 768 749 147.9
C 7 220 1966527 11843.57 712 717 166.0
C 14 223 11895 67.34 712 717 166.0
C 1 16 10515 59.03 712 717 166.0
D 13 223 34741 193.2 728 707 176.2
D 13 239 13611 73.25 728 707 176.2
D 5 233 11448 60.97 728 707 176.2

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