ASTROSAT CZTI

Data Quality Report

Orbit 38434

Creation date: 2024-06-27T21:52:41.845191
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/AS1A12_018T01_9000005386_38434cztM0_level2.fits modeM0/AS1A12_018T01_9000005386_38434cztM0_level2_quad_clean.evt
Size (bytes)396,875,52089,311,680
Size378.5 MB 85.2 MB
Events in quadrant A2,824,136637,070
Events in quadrant B3,585,802614,733
Events in quadrant C2,883,344606,818
Events in quadrant D5,005,368492,460

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114443
B0138122
C0114822
D0183362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5043170.337101%
B50432845.631569%
C5043821.626016%
D504380415.942891%

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 7167 5044 12 12 0.17% 0.24%
B 7167 5044 211 211 2.94% 4.18%
C 7167 5044 66 66 0.92% 1.31%
D 7167 5044 679 679 9.47% 13.46%

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 10 83 381452 3251.99 587 576 117.1
A 13 248 82710 701.28 587 576 117.1
A 9 143 26948 225.17 587 576 117.1
B 5 184 788766 7311.66 572 558 107.8
B 0 229 204324 1890.2 572 558 107.8
B 4 232 106981 987.21 572 558 107.8
C 4 254 319495 2440.91 574 579 130.7
C 15 214 212530 1622.23 574 579 130.7
C 2 16 66928 507.82 574 579 130.7
D 2 16 1484358 11303.54 547 534 131.3
D 12 235 351299 2672.07 547 534 131.3
D 12 227 339877 2585.06 547 534 131.3

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