ASTROSAT CZTI

Data Quality Report

Orbit 07293

Creation date: 2024-06-27T15:18:11.611445
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/AS1G06_154T04_9000000998_07293cztM0_level2.evt modeM0/AS1G06_154T04_9000000998_07293cztM0_level2_quad_clean.evt
Size (bytes)443,557,44087,134,400
Size423.0 MB 83.1 MB
Events in quadrant A3,149,748551,964
Events in quadrant B3,164,649575,094
Events in quadrant C2,933,395562,517
Events in quadrant D3,770,202522,497

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136412
B0135232
C0128802
D0153822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6103530.868425%
B6103691.130592%
C6103330.540718%
D61032514.112731%

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 8563 6104 0 0 0.00% 0.00%
B 8563 6105 9 9 0.11% 0.15%
C 8563 6105 0 0 0.00% 0.00%
D 8563 6105 176 176 2.06% 2.88%

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 15 234 127496 817.03 760 745 155.1
A 8 15 75145 479.58 760 745 155.1
A 14 111 12883 78.24 760 745 155.1
B 0 214 72729 493.03 771 752 146.0
B 4 81 68172 461.81 771 752 146.0
B 0 213 31570 211.1 771 752 146.0
C 9 68 13331 72.74 746 751 173.0
C 1 16 7729 40.35 746 751 173.0
C 13 61 5746 28.88 746 751 173.0
D 14 34 364938 2008.05 732 710 181.4
D 2 216 287442 1580.8 732 710 181.4
D 13 112 157470 864.24 732 710 181.4

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