ASTROSAT CZTI

Data Quality Report

Orbit 39292

Creation date: 2024-06-27T22:02:48.518845
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_037T03_9000005460_39292cztM0_level2.fits modeM0/AS1A12_037T03_9000005460_39292cztM0_level2_quad_clean.evt
Size (bytes)648,642,24080,424,000
Size618.6 MB 76.7 MB
Events in quadrant A3,400,032651,041
Events in quadrant B3,479,678641,591
Events in quadrant C2,850,548631,050
Events in quadrant D13,830,252106,881

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136053
B0141772
C0119302
D0450622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5787200.345602%
B57872504.320028%
C578740.069120%
D5787493785.311906%

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 7130 5788 10 10 0.14% 0.17%
B 7130 5788 178 178 2.50% 3.08%
C 7130 5788 0 0 0.00% 0.00%
D 7130 5788 4229 4229 59.31% 73.06%

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 449014 3338.29 655 641 134.3
A 15 222 340324 2529.06 655 641 134.3
A 13 248 78230 577.68 655 641 134.3
B 5 172 750545 5995.75 639 621 125.1
B 5 255 123200 980.04 639 621 125.1
B 15 35 60851 481.55 639 621 125.1
C 15 214 243868 1616.8 640 642 150.4
C 9 187 103511 683.8 640 642 150.4
C 0 10 4468 25.43 640 642 150.4
D 12 235 11818228 129440.0 366 354 91.3
D 12 227 319806 3498.93 366 354 91.3
D 2 249 126909 1386.14 366 354 91.3

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