ASTROSAT CZTI

Data Quality Report

Orbit 38095

Creation date: 2024-06-27T21:48:19.270306
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/AS1A11_047T09_9000005362_38095cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38095cztM0_level2_quad_clean.evt
Size (bytes)382,492,80095,906,880
Size364.8 MB 91.5 MB
Events in quadrant A3,108,673658,020
Events in quadrant B2,895,747659,682
Events in quadrant C3,878,658610,388
Events in quadrant D3,846,250589,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126903
B0121842
C0150182
D0152642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5522250.452735%
B5522500.905469%
C55222855.161173%
D5522761.376313%

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 7166 5523 5 5 0.07% 0.09%
B 7166 5523 20 20 0.28% 0.36%
C 7166 5523 261 261 3.64% 4.73%
D 7166 5523 68 68 0.95% 1.23%

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 10 83 394490 2959.1 653 639 133.1
A 12 16 60870 452.53 653 639 133.1
A 0 247 42954 317.92 653 639 133.1
B 0 229 114834 910.51 648 631 125.4
B 5 172 88275 698.76 648 631 125.4
B 4 81 68454 540.73 648 631 125.4
C 1 23 1060802 7296.39 622 628 145.3
C 15 214 226594 1555.16 622 628 145.3
C 14 254 69519 474.13 622 628 145.3
D 12 235 395624 2554.31 633 616 154.6
D 10 40 272802 1760.08 633 616 154.6
D 1 52 222083 1432.11 633 616 154.6

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