ASTROSAT CZTI

Data Quality Report

Orbit 27301

Creation date: 2024-06-27T19:38:36.715989
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_243T01_9000003918_27301cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27301cztM0_level2_quad_clean.evt
Size (bytes)517,818,240100,172,160
Size493.8 MB 95.5 MB
Events in quadrant A3,264,785677,527
Events in quadrant B3,364,195685,218
Events in quadrant C3,306,011635,175
Events in quadrant D5,328,965605,202

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134690
B0140380
C0136040
D0200430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61631221.979555%
B61631282.076911%
C61631682.725945%
D61644447.203115%

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 7378 6164 2 2 0.03% 0.03%
B 7378 6164 10 10 0.14% 0.16%
C 7378 6164 11 11 0.15% 0.18%
D 7379 6165 352 352 4.77% 5.71%

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 13 248 47475 278.63 832 817 167.5
A 13 254 10435 57.44 832 817 167.5
A 3 137 7249 38.41 832 817 167.5
B 7 205 100354 643.17 818 800 154.8
B 10 245 42169 267.26 818 800 154.8
B 12 111 18165 112.19 818 800 154.8
C 15 208 163624 899.3 774 780 181.1
C 14 238 127290 698.65 774 780 181.1
C 13 61 5385 25.43 774 780 181.1
D 1 52 1892358 9725.72 773 759 194.5
D 12 233 244714 1254.3 773 759 194.5
D 2 250 156641 801.47 773 759 194.5

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