ASTROSAT CZTI

Data Quality Report

Orbit 34344

Creation date: 2022-02-03T16:52:15.203002
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/AS1C07_001T05_9000004902_34344cztM0_level2.evt modeM0/AS1C07_001T05_9000004902_34344cztM0_level2_quad_clean.evt
Size (bytes)477,316,80096,186,240
Size455.2 MB 91.7 MB
Events in quadrant A2,571,391644,070
Events in quadrant B3,334,988644,262
Events in quadrant C3,146,820636,613
Events in quadrant D5,020,648594,400

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114163
B0135082
C0126372
D0188482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A562970.124356%
B56291723.055605%
C5629510.906022%
D56292754.885415%

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 7182 5630 0 0 0.00% 0.00%
B 7182 5630 113 113 1.57% 2.01%
C 7182 5630 46 46 0.64% 0.82%
D 7182 5630 302 302 4.20% 5.36%

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 30984 230.53 651 640 131.6
A 9 143 16405 119.77 651 640 131.6
A 13 6 9590 67.99 651 640 131.6
B 5 172 712332 5706.5 639 621 124.7
B 4 251 51549 408.34 639 621 124.7
B 0 229 20149 156.58 639 621 124.7
C 14 254 350445 2419.24 628 632 144.6
C 15 214 237098 1635.35 628 632 144.6
C 0 10 77015 528.25 628 632 144.6
D 12 235 1504184 9799.74 625 608 153.4
D 8 195 605199 3940.49 625 608 153.4
D 2 250 181446 1178.63 625 608 153.4

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