ASTROSAT CZTI

Data Quality Report

Orbit 22104

Creation date: 2024-06-27T18:36:38.791642
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_007T04_9000003276_22104cztM0_level2.evt modeM0/AS1A07_007T04_9000003276_22104cztM0_level2_quad_clean.evt
Size (bytes)473,993,280103,584,960
Size452.0 MB 98.8 MB
Events in quadrant A3,449,359692,862
Events in quadrant B3,369,194697,955
Events in quadrant C3,362,382654,342
Events in quadrant D3,736,907642,935

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140822
B0137671
C0136301
D0149281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64331021.585574%
B6433931.445671%
C6434991.538701%
D64341592.471247%

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 7653 6434 8 8 0.10% 0.12%
B 7653 6434 0 0 0.00% 0.00%
C 7654 6435 0 0 0.00% 0.00%
D 7654 6435 53 53 0.69% 0.82%

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 93883 540.35 871 856 172.2
A 13 254 9995 53.08 871 856 172.2
A 0 226 7514 38.67 871 856 172.2
B 12 111 18739 111.57 853 833 160.5
B 11 111 16973 100.57 853 833 160.5
B 14 111 14874 87.49 853 833 160.5
C 14 238 130828 689.27 818 824 188.6
C 10 22 34387 177.95 818 824 188.6
C 8 222 5713 25.92 818 824 188.6
D 11 176 324415 1602.09 836 814 202.0
D 1 52 119077 585.5 836 814 202.0
D 2 136 67974 332.5 836 814 202.0

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