ASTROSAT CZTI

Data Quality Report

Orbit 10067

Creation date: 2024-06-27T15:54:20.744333
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/AS1A03_008T01_9000001442_10067cztM0_level2.evt modeM0/AS1A03_008T01_9000001442_10067cztM0_level2_quad_clean.evt
Size (bytes)314,579,52064,105,920
Size300.0 MB 61.1 MB
Events in quadrant A2,297,546397,545
Events in quadrant B2,322,968408,671
Events in quadrant C2,214,296400,447
Events in quadrant D2,346,876381,321

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140211175
B02132311043
C02105310847
D02281712400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021099
B021199
C0211111
D0209113

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B051
C051
D051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4979430.863627%
B5022521.035444%
C5046240.475624%
D4959360.725953%

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 10999 6607 1 1 0.01% 0.02%
B 10988 6655 1 1 0.01% 0.02%
C 10986 6689 0 0 0.00% 0.00%
D 10933 6481 7 7 0.06% 0.11%

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 8 5 90648 759.54 567 553 118.6
A 0 8 11545 92.67 567 553 118.6
A 8 15 7244 56.41 567 553 118.6
B 0 214 41091 360.7 577 563 112.4
B 4 239 24003 208.61 577 563 112.4
B 12 111 12659 107.65 577 563 112.4
C 14 234 13410 97.99 560 561 131.1
C 8 128 6874 48.15 560 561 131.1
C 13 61 4095 26.95 560 561 131.1
D 1 52 86677 617.97 548 532 139.4
D 2 152 45729 324.23 548 532 139.4
D 8 195 32627 230.24 548 532 139.4

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