ASTROSAT CZTI

Data Quality Report

Orbit 41296

Creation date: 2024-06-27T22:27:09.580738
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/AS1T05_106T01_9000005642_41296cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41296cztM0_level2_quad_clean.evt
Size (bytes)502,384,32082,370,880
Size479.1 MB 78.6 MB
Events in quadrant A7,506,741399,433
Events in quadrant B2,508,266632,556
Events in quadrant C3,093,543565,922
Events in quadrant D5,054,479506,499

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258773
B0113352
C0128352
D0188482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5574199535.791173%
B557480.143524%
C55742213.964837%
D55745089.113742%

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 7248 5575 1985 1985 27.39% 35.61%
B 7248 5575 1 1 0.01% 0.02%
C 7248 5575 216 216 2.98% 3.87%
D 7248 5575 531 531 7.33% 9.52%

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 6 10 5185618 53700.43 472 463 96.6
A 10 83 445200 4605.95 472 463 96.6
A 12 189 42740 437.84 472 463 96.6
B 7 202 56108 476.14 599 582 116.6
B 0 229 45986 389.35 599 582 116.6
B 0 245 24671 206.57 599 582 116.6
C 0 10 611685 4566.96 574 578 133.8
C 15 214 234962 1751.61 574 578 133.8
C 3 233 7705 53.26 574 578 133.8
D 2 249 736217 5347.82 561 545 137.6
D 5 222 708761 5148.23 561 545 137.6
D 13 249 522492 3794.19 561 545 137.6

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