ASTROSAT CZTI

Data Quality Report

Orbit 45547

Creation date: 2024-06-27T23:13:28.419077
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_071T02_9000006106_45547cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45547cztM0_level2_quad_clean.evt
Size (bytes)461,877,120109,589,760
Size440.5 MB 104.5 MB
Events in quadrant A5,526,828735,089
Events in quadrant B3,869,708748,094
Events in quadrant C3,137,528741,002
Events in quadrant D4,083,535663,629

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209261
B0156581
C0133881
D0163091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61762293.707902%
B61763044.922280%
C6176691.117228%
D61761852.995466%

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 7416 6177 34 34 0.46% 0.55%
B 7416 6177 150 150 2.02% 2.43%
C 7416 6177 38 38 0.51% 0.62%
D 7416 6177 126 126 1.70% 2.04%

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 2456550 16000.22 741 726 153.5
A 13 248 154451 1001.55 741 726 153.5
A 2 79 47792 306.65 741 726 153.5
B 15 201 815261 5643.75 738 716 144.3
B 5 172 92696 637.3 738 716 144.3
B 7 221 20025 133.79 738 716 144.3
C 14 254 238558 1367.64 740 747 173.9
C 1 3 7398 38.25 740 747 173.9
C 13 61 4798 23.3 740 747 173.9
D 1 52 430753 2389.8 728 708 179.9
D 13 249 398314 2209.54 728 708 179.9
D 6 239 110669 611.06 728 708 179.9

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