ASTROSAT CZTI

Data Quality Report

Orbit 09887

Creation date: 2024-06-27T15:51:53.459086
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/AS1A03_117T06_9000001404_09887cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09887cztM0_level2_quad_clean.evt
Size (bytes)369,472,32078,531,840
Size352.4 MB 74.9 MB
Events in quadrant A2,711,912500,900
Events in quadrant B2,723,060518,731
Events in quadrant C2,636,552495,047
Events in quadrant D2,736,293472,574

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0251
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137891957
B0138362113
C0137702064
D0142362169

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013610
B01359
C013624
D013616

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5608540.962910%
B5537741.336464%
C5554140.252071%
D5532300.542299%

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 9088 6265 0 0 0.00% 0.00%
B 9088 6238 0 0 0.00% 0.00%
C 9088 6234 0 0 0.00% 0.00%
D 9088 6218 3 3 0.03% 0.05%

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 11539 75.5 702 688 143.7
A 0 226 6445 40.06 702 688 143.7
A 12 194 5446 33.11 702 688 143.7
B 12 111 15950 112.95 698 682 135.2
B 11 111 13069 91.63 698 682 135.2
B 14 111 10965 76.07 698 682 135.2
C 13 61 5063 27.69 675 680 158.3
C 14 67 3937 20.58 675 680 158.3
C 10 22 1807 7.12 675 680 158.3
D 1 52 85396 489.81 660 647 173.0
D 2 16 49266 280.99 660 647 173.0
D 2 234 20913 117.13 660 647 173.0

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