ASTROSAT CZTI

Data Quality Report

Orbit 04923

Creation date: 2024-06-27T14:48:53.983163
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_118T01_9000000622_04923cztM0_level2.evt modeM0/AS1G05_118T01_9000000622_04923cztM0_level2_quad_clean.evt
Size (bytes)434,692,80061,522,560
Size414.6 MB 58.7 MB
Events in quadrant A2,774,964369,404
Events in quadrant B2,864,006369,359
Events in quadrant C2,626,207364,813
Events in quadrant D4,485,751333,929

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124062
B0126391
C0123251
D0174631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6083330.542495%
B6083360.591813%
C608370.115075%
D60834467.331909%

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 7118 6084 0 0 0.00% 0.00%
B 7118 6084 4 4 0.06% 0.07%
C 7118 6084 0 0 0.00% 0.00%
D 7118 6084 407 407 5.72% 6.69%

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 80113 563.89 692 676 140.9
A 15 31 19867 136.23 692 676 140.9
A 0 50 10570 70.23 692 676 140.9
B 10 16 75275 569.22 697 682 131.0
B 15 204 36153 270.68 697 682 131.0
B 0 183 19361 142.54 697 682 131.0
C 7 238 5816 33.38 669 671 154.1
C 9 247 5748 32.94 669 671 154.1
C 13 61 5675 32.47 669 671 154.1
D 2 33 1343901 8456.67 652 630 158.8
D 2 136 168127 1054.49 652 630 158.8
D 1 7 150150 941.32 652 630 158.8

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