ASTROSAT CZTI

Data Quality Report

Orbit 34932

Creation date: 2024-06-27T21:07:12.401201
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/AS1A11_065T12_9000005004_34932cztM0_level2.evt modeM0/AS1A11_065T12_9000005004_34932cztM0_level2_quad_clean.evt
Size (bytes)461,295,36052,297,920
Size439.9 MB 49.9 MB
Events in quadrant A3,231,763309,906
Events in quadrant B2,961,410315,916
Events in quadrant C3,628,903304,316
Events in quadrant D3,792,484285,488

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130033
B0122702
C0141472
D0150212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5250230.438095%
B5250771.466667%
C52502043.885714%
D52501532.914286%

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 7043 5251 12 12 0.17% 0.23%
B 7043 5251 50 50 0.71% 0.95%
C 7043 5251 196 196 2.78% 3.73%
D 7042 5250 139 139 1.97% 2.65%

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 15 169 810504 6718.99 596 584 120.5
A 10 83 65952 542.28 596 584 120.5
A 15 237 38640 315.71 596 584 120.5
B 5 172 305344 2659.58 594 579 114.6
B 0 190 156289 1358.83 594 579 114.6
B 4 232 62949 544.28 594 579 114.6
C 4 254 813474 6037.5 578 583 134.6
C 0 10 279423 2071.0 578 583 134.6
C 15 214 221071 1637.61 578 583 134.6
D 8 195 789618 5590.15 574 557 141.2
D 13 249 135102 953.19 574 557 141.2
D 1 52 126096 889.39 574 557 141.2

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