ASTROSAT CZTI

Data Quality Report

Orbit 04604

Creation date: 2024-06-27T14:44:14.047116
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_167T02_9000000574_04604cztM0_level2.evt modeM0/AS1G05_167T02_9000000574_04604cztM0_level2_quad_clean.evt
Size (bytes)425,782,08067,625,280
Size406.1 MB 64.5 MB
Events in quadrant A2,949,161400,937
Events in quadrant B3,088,963411,706
Events in quadrant C3,162,875405,623
Events in quadrant D3,258,021382,102

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131613
B0133472
C0134652
D0142652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6408280.436954%
B6408410.639825%
C6408180.280899%
D6408510.795880%

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 7588 6409 0 0 0.00% 0.00%
B 7588 6409 0 0 0.00% 0.00%
C 7588 6409 1 1 0.01% 0.02%
D 7588 6409 30 30 0.40% 0.47%

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 0 226 8037 46.67 762 747 156.2
A 3 1 7819 45.27 762 747 156.2
A 12 194 7340 42.21 762 747 156.2
B 15 204 33375 217.97 775 754 149.7
B 14 167 23872 154.47 775 754 149.7
B 12 111 13836 87.41 775 754 149.7
C 14 48 226180 1295.82 742 747 174.0
C 9 247 31642 177.59 742 747 174.0
C 9 54 6526 33.22 742 747 174.0
D 13 235 198394 1108.12 728 707 178.4
D 2 136 147118 820.69 728 707 178.4
D 2 63 48719 269.13 728 707 178.4

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