ASTROSAT CZTI

Data Quality Report

Orbit 10400

Creation date: 2024-06-27T15:58:53.576963
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_057T02_9000001504_10400cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10400cztM0_level2_quad_clean.evt
Size (bytes)307,851,84058,400,640
Size293.6 MB 55.7 MB
Events in quadrant A2,115,701414,690
Events in quadrant B2,232,237338,951
Events in quadrant C2,093,355345,894
Events in quadrant D2,561,339340,003

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04048230892
B04664236972
C04212232459
D04617135662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01814
B01814
C01814
D01714

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0415330
B0412322
C0414312
D0402309

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4706551.168721%
B4559581.272209%
C4758310.651534%
D4689511.087652%

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 11463 6470 0 0 0.00% 0.00%
B 11462 6353 0 0 0.00% 0.00%
C 11456 6593 0 0 0.00% 0.00%
D 11459 6447 2 2 0.02% 0.03%

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 15 174 6593 53.37 543 530 113.6
A 1 162 5207 41.17 543 530 113.6
A 13 253 4893 38.4 543 530 113.6
B 4 239 64226 623.15 527 514 102.2
B 11 51 56642 548.97 527 514 102.2
B 0 219 19318 183.92 527 514 102.2
C 13 61 4157 28.93 534 537 125.1
C 14 234 3889 26.79 534 537 125.1
C 14 67 3487 23.57 534 537 125.1
D 1 52 190707 1503.97 522 508 126.5
D 8 195 190153 1499.59 522 508 126.5
D 1 20 85031 668.35 522 508 126.5

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