ASTROSAT CZTI

Data Quality Report

Orbit 44007

Creation date: 2024-06-27T22:58:11.610608
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/AS1A13_034T05_9000005928_44007cztM0_level2.fits modeM0/AS1A13_034T05_9000005928_44007cztM0_level2_quad_clean.evt
Size (bytes)391,236,48097,873,920
Size373.1 MB 93.3 MB
Events in quadrant A3,832,836659,284
Events in quadrant B2,838,098679,794
Events in quadrant C2,981,748642,032
Events in quadrant D4,353,111554,412

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156081
B0126371
C0131731
D0172641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6124751.224690%
B6124400.653168%
C6124290.473547%
D61254497.330612%

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 7029 6125 5 5 0.07% 0.08%
B 7029 6125 3 3 0.04% 0.05%
C 7029 6125 16 16 0.23% 0.26%
D 7030 6126 383 383 5.45% 6.25%

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 1060342 7370.53 686 671 143.8
A 14 238 63281 435.48 686 671 143.8
A 15 222 30343 206.38 686 671 143.8
B 4 171 49713 358.95 685 665 136.6
B 0 213 47990 346.34 685 665 136.6
B 12 111 17757 125.08 685 665 136.6
C 14 254 229359 1438.57 665 668 159.0
C 3 233 128203 802.25 665 668 159.0
C 15 1 28175 173.03 665 668 159.0
D 1 52 1277450 7861.97 642 621 162.4
D 5 222 330881 2033.55 642 621 162.4
D 12 233 74576 455.37 642 621 162.4

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