ASTROSAT CZTI

Data Quality Report

Orbit 13036

Creation date: 2024-06-27T16:35:37.126440
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/AS1A04_149T01_9000001918_13036cztM0_level2.evt modeM0/AS1A04_149T01_9000001918_13036cztM0_level2_quad_clean.evt
Size (bytes)556,076,16093,124,800
Size530.3 MB 88.8 MB
Events in quadrant A3,424,404636,073
Events in quadrant B6,225,516479,546
Events in quadrant C2,989,704633,483
Events in quadrant D3,740,733598,273

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146443
B0232872
C0137162
D0159042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6779410.604809%
B6779202329.842160%
C6779160.236023%
D6779590.870335%

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 8555 6782 5 5 0.06% 0.07%
B 8555 6781 976 976 11.41% 14.39%
C 8555 6782 0 0 0.00% 0.00%
D 8555 6782 42 42 0.49% 0.62%

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 12 189 89528 556.88 784 768 159.4
A 8 15 88762 552.07 784 768 159.4
A 1 162 73445 455.97 784 768 159.4
B 4 239 3684065 32851.21 591 576 112.1
B 3 64 131218 1165.13 591 576 112.1
B 3 209 29726 259.97 591 576 112.1
C 13 61 5445 26.52 765 769 176.3
C 8 222 2930 12.25 765 769 176.3
C 14 234 2721 11.07 765 769 176.3
D 1 52 711224 3913.21 753 730 181.6
D 8 195 119739 655.47 753 730 181.6
D 2 234 25680 137.42 753 730 181.6

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