ASTROSAT CZTI

Data Quality Report

Orbit 08160

Creation date: 2024-06-27T15:29:03.108854
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_046T01_9000001124_08160cztM0_level2.evt modeM0/AS1G07_046T01_9000001124_08160cztM0_level2_quad_clean.evt
Size (bytes)582,094,08081,938,880
Size555.1 MB 78.1 MB
Events in quadrant A3,117,186513,835
Events in quadrant B3,179,171518,529
Events in quadrant C3,258,473515,260
Events in quadrant D7,631,787478,336

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134102
B0135041
C0136321
D0270111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6527570.873296%
B6527500.766049%
C6527350.536234%
D6527117518.002145%

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 7577 6528 1 1 0.01% 0.02%
B 7577 6528 8 8 0.11% 0.12%
C 7577 6528 0 0 0.00% 0.00%
D 7577 6528 1262 1262 16.66% 19.33%

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 13 251 44409 269.12 795 778 162.1
A 0 226 7588 42.01 795 778 162.1
A 15 79 7201 39.62 795 778 162.1
B 10 16 43663 279.07 793 775 153.7
B 0 214 30635 194.3 793 775 153.7
B 12 111 15409 95.22 793 775 153.7
C 1 16 277974 1557.84 764 768 177.9
C 13 61 5667 27.53 764 768 177.9
C 3 202 1886 6.28 764 768 177.9
D 13 105 4212410 21107.96 740 723 199.5
D 5 233 227523 1136.67 740 723 199.5
D 1 52 195138 974.36 740 723 199.5

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