ASTROSAT CZTI

Data Quality Report

Orbit 09536

Creation date: 2024-06-27T15:47:24.133244
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_049T01_9000001352_09536cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09536cztM0_level2_quad_clean.evt
Size (bytes)396,789,120108,100,800
Size378.4 MB 103.1 MB
Events in quadrant A3,041,722728,605
Events in quadrant B2,640,260737,124
Events in quadrant C2,565,804730,329
Events in quadrant D3,407,051705,340

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136851151
B012195967
C012307995
D0147351049

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012010
B01208
C012010
D01208

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5300681.283019%
B5314450.846820%
C5310460.866290%
D5303921.734867%

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 7028 5525 1 1 0.01% 0.02%
B 7030 5530 4 4 0.06% 0.07%
C 7030 5552 8 8 0.11% 0.14%
D 7030 5542 50 50 0.71% 0.90%

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 1 162 222869 1687.11 652 640 131.7
A 1 178 107859 813.98 652 640 131.7
A 1 161 103061 777.56 652 640 131.7
B 0 214 56512 457.28 651 636 122.2
B 0 219 35894 288.54 651 636 122.2
B 12 111 12651 98.33 651 636 122.2
C 4 254 98459 679.73 632 637 143.9
C 13 61 4988 30.23 632 637 143.9
C 8 222 1684 7.28 632 637 143.9
D 1 52 842047 5445.4 631 617 154.5
D 13 137 69729 447.27 631 617 154.5
D 12 233 47130 301.01 631 617 154.5

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