ASTROSAT CZTI

Data Quality Report

Orbit 08564

Creation date: 2024-06-27T15:34:19.524952
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_060T01_9000001200_08564cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08564cztM0_level2_quad_clean.evt
Size (bytes)442,782,72088,018,560
Size422.3 MB 83.9 MB
Events in quadrant A3,151,893556,251
Events in quadrant B3,196,643563,786
Events in quadrant C2,901,734559,642
Events in quadrant D3,721,441536,425

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139923
B0138652
C0132042
D0155752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6444871.350093%
B6444681.055245%
C6444320.496586%
D64441812.808814%

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 7494 6446 27 27 0.36% 0.42%
B 7494 6446 15 15 0.20% 0.23%
C 7494 6446 0 0 0.00% 0.00%
D 7494 6446 137 137 1.83% 2.13%

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 15 223 169611 1085.64 757 741 155.5
A 15 239 60432 383.74 757 741 155.5
A 13 14 7631 44.29 757 741 155.5
B 10 16 138539 944.22 760 739 145.9
B 0 214 31211 208.79 760 739 145.9
B 4 97 22382 148.3 760 739 145.9
C 13 61 5420 27.09 743 747 172.5
C 8 222 2753 11.63 743 747 172.5
C 3 202 1906 6.72 743 747 172.5
D 1 52 414521 2282.15 731 709 181.3
D 7 71 291649 1604.52 731 709 181.3
D 12 233 126724 694.97 731 709 181.3

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