ASTROSAT CZTI

Data Quality Report

Orbit 30215

Creation date: 2024-06-27T20:12:19.697736
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/AS1A10_071T15_9000004346_30215cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30215cztM0_level2_quad_clean.evt
Size (bytes)343,874,88042,281,280
Size327.9 MB 40.3 MB
Events in quadrant A2,111,915251,382
Events in quadrant B3,307,196252,679
Events in quadrant C2,199,754240,942
Events in quadrant D2,506,030235,811

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089620
B0129490
C090350
D0100180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42402145.047170%
B42413307.781184%
C42412235.258194%
D42411864.385758%

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 4240 4240 0 0 0.00% 0.00%
B 4241 4241 0 0 0.00% 0.00%
C 4241 4241 0 0 0.00% 0.00%
D 4241 4241 34 34 0.80% 0.80%

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 13 254 7347 59.76 547 532 114.0
A 3 137 6050 48.39 547 532 114.0
A 0 226 4564 35.36 547 532 114.0
B 6 159 1197658 11165.27 534 518 107.2
B 12 111 13720 123.13 534 518 107.2
B 11 111 12696 113.58 534 518 107.2
C 14 238 82815 655.85 523 524 125.5
C 3 233 69915 553.04 523 524 125.5
C 2 114 10123 76.5 523 524 125.5
D 1 52 247080 1919.28 528 513 128.5
D 7 223 86504 669.35 528 513 128.5
D 8 195 83142 643.18 528 513 128.5

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