ASTROSAT CZTI

Data Quality Report

Orbit 01058

Creation date: 2024-06-27T14:06:49.524557
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/AS1P01_998T02_9000000190_01058cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01058cztM0_level2_quad_clean.evt
Size (bytes)1,114,390,080105,972,480
Size1.0 GB 101.1 MB
Events in quadrant A7,556,193726,364
Events in quadrant B7,910,732725,386
Events in quadrant C7,588,525702,249
Events in quadrant D10,278,699617,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269141
B0279301
C0269711
D0351821

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6279610.971492%
B6279610.971492%
C6280380.605096%
D6280117718.742038%

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 7274 6280 292 292 4.01% 4.65%
B 7274 6280 343 343 4.72% 5.46%
C 7275 6281 236 236 3.24% 3.76%
D 7275 6280 1526 1526 20.98% 24.30%

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 0 253 187065 404.48 1912 1921 457.7
A 15 127 24989 50.4 1912 1921 457.7
A 11 79 7668 12.56 1912 1921 457.7
B 5 249 99770 211.12 1970 1973 463.2
B 2 32 71540 150.18 1970 1973 463.2
B 15 22 53662 111.58 1970 1973 463.2
C 15 241 331858 651.22 1825 1890 506.7
C 7 207 54097 103.03 1825 1890 506.7
C 3 79 41035 77.26 1825 1890 506.7
D 2 25 61318 125.96 1677 1729 473.1
D 2 14 61030 125.35 1677 1729 473.1
D 2 40 61017 125.32 1677 1729 473.1

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