ASTROSAT CZTI

Data Quality Report

Orbit 42008

Creation date: 2024-06-27T22:35:40.141622
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_011T26_9000005732_42008cztM0_level2.fits modeM0/AS1A12_011T26_9000005732_42008cztM0_level2_quad_clean.evt
Size (bytes)303,281,28086,722,560
Size289.2 MB 82.7 MB
Events in quadrant A2,989,598574,604
Events in quadrant B2,497,464593,827
Events in quadrant C2,406,891572,871
Events in quadrant D2,922,463516,015

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121722
B0111942
C0105572
D0124692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5259280.532421%
B5259340.646511%
C525940.076060%
D52591102.091652%

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 7081 5260 25 25 0.35% 0.48%
B 7081 5260 18 18 0.25% 0.34%
C 7081 5260 0 0 0.00% 0.00%
D 7081 5260 106 106 1.50% 2.02%

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 542416 4571.5 569 556 118.5
A 12 189 122681 1030.33 569 556 118.5
A 15 223 76196 638.15 569 556 118.5
B 4 171 114927 1033.29 569 553 110.7
B 5 255 67180 601.93 569 553 110.7
B 0 190 45841 409.15 569 553 110.7
C 15 214 219036 1681.54 558 562 129.9
C 12 249 4051 26.85 558 562 129.9
C 13 61 3723 24.33 558 562 129.9
D 13 249 279033 2039.7 550 534 136.5
D 2 249 184154 1344.81 550 534 136.5
D 10 199 117040 853.28 550 534 136.5

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