ASTROSAT CZTI

Data Quality Report

Orbit 16112

Creation date: 2024-06-27T17:18:09.333216
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/AS1A04_209T01_9000002378_16112cztM0_level2.evt modeM0/AS1A04_209T01_9000002378_16112cztM0_level2_quad_clean.evt
Size (bytes)532,140,48090,509,760
Size507.5 MB 86.3 MB
Events in quadrant A4,451,325569,389
Events in quadrant B3,373,619590,176
Events in quadrant C3,823,811564,072
Events in quadrant D4,017,474555,166

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176393
B0142222
C0155982
D0162492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66275297.982496%
B6627891.342991%
C66271932.912328%
D66272143.229214%

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 7648 6628 304 304 3.97% 4.59%
B 7648 6628 2 2 0.03% 0.03%
C 7648 6628 35 35 0.46% 0.53%
D 7648 6628 146 146 1.91% 2.20%

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 15 174 1298595 7802.34 820 803 166.3
A 0 226 7422 39.79 820 803 166.3
A 12 194 6098 31.83 820 803 166.3
B 0 190 27060 161.07 840 819 162.9
B 0 189 19801 116.52 840 819 162.9
B 4 216 19427 114.22 840 819 162.9
C 9 236 531648 2813.67 808 813 188.7
C 14 238 124061 653.27 808 813 188.7
C 3 233 8754 42.09 808 813 188.7
D 15 0 522682 2630.18 820 794 198.4
D 1 52 304983 1533.03 820 794 198.4
D 5 222 65451 325.85 820 794 198.4

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