ASTROSAT CZTI

Data Quality Report

Orbit 17059

Creation date: 2024-06-27T17:31:28.481909
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/AS1T03_004T01_9000002532_17059cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17059cztM0_level2_quad_clean.evt
Size (bytes)1,521,437,760229,642,560
Size1.4 GB 219.0 MB
Events in quadrant A8,508,9641,458,612
Events in quadrant B9,024,3961,469,553
Events in quadrant C17,969,5861,363,334
Events in quadrant D9,327,8481,389,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03760
B03760
C03760
D03760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378563
B0386233
C0666794
D0408323

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A184801260.681818%
B184811790.968562%
C1848012776.910173%
D184803531.910173%

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 20366 18484 0 0 0.00% 0.00%
B 20367 18485 26 26 0.13% 0.14%
C 20366 18483 429 429 2.11% 2.32%
D 20366 18484 221 221 1.09% 1.20%

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 4 2 76816 168.76 2183 2133 442.5
A 12 189 43358 93.16 2183 2133 442.5
A 0 226 19331 38.86 2183 2133 442.5
B 0 197 191972 456.15 2182 2128 416.2
B 0 219 95452 224.23 2182 2128 416.2
B 12 111 49729 114.37 2182 2128 416.2
C 3 233 9581019 19962.72 2063 2078 479.8
C 14 238 312314 646.54 2063 2078 479.8
C 9 54 18243 33.69 2063 2078 479.8
D 15 0 786564 1533.38 2119 2059 511.6
D 1 52 252645 489.79 2119 2059 511.6
D 10 70 222200 430.28 2119 2059 511.6

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