ASTROSAT CZTI

Data Quality Report

Orbit 53106

Creation date: 2025-07-28T20:48:50.548211
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/AS1C09_011T07_9000006488_53106cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53106cztM0_level2_quad_clean.evt
Size (bytes)783,368,64080,896,320
Size747.1 MB 77.1 MB
Events in quadrant A13,613,934219,186
Events in quadrant B4,165,460663,447
Events in quadrant C5,568,269577,674
Events in quadrant D5,151,675540,226

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0448052
B0169691
C0210501
D0199521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6433456470.946681%
B64332033.155604%
C64344607.149518%
D64345228.113149%

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 7642 6432 4356 4356 57.00% 67.72%
B 7643 6433 114 114 1.49% 1.77%
C 7644 6435 498 498 6.51% 7.74%
D 7644 6435 545 545 7.13% 8.47%

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 9 191 11138715 94740.94 464 452 117.6
A 12 80 231271 1963.32 464 452 117.6
A 6 248 145899 1237.16 464 452 117.6
B 4 171 327147 2372.26 655 633 137.6
B 10 254 318152 2306.9 655 633 137.6
B 14 167 185174 1340.76 655 633 137.6
C 15 224 1393819 7935.99 632 625 175.6
C 0 240 779670 4437.64 632 625 175.6
C 15 157 241475 1371.94 632 625 175.6
D 12 3 1294354 7191.91 622 593 179.9
D 2 249 707023 3926.99 622 593 179.9
D 10 172 177898 985.62 622 593 179.9

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