ASTROSAT CZTI

Data Quality Report

Orbit 36633

Creation date: 2024-06-27T21:29:29.117796
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_049T03_9000005228_36633cztM0_level2.evt modeM0/AS1A11_049T03_9000005228_36633cztM0_level2_quad_clean.evt
Size (bytes)530,867,52051,572,160
Size506.3 MB 49.2 MB
Events in quadrant A2,705,933309,004
Events in quadrant B4,566,478297,081
Events in quadrant C3,135,146297,595
Events in quadrant D5,302,585277,598

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113383
B0171252
C0125332
D0195712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A542690.165868%
B54265249.657206%
C54261102.027276%
D54262885.307777%

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 7160 5427 0 0 0.00% 0.00%
B 7160 5427 340 340 4.75% 6.26%
C 7160 5427 89 89 1.24% 1.64%
D 7160 5427 259 259 3.62% 4.77%

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 205270 1585.3 638 626 129.1
A 13 6 19514 146.32 638 626 129.1
A 15 223 9508 68.81 638 626 129.1
B 5 200 1793554 15260.36 617 601 117.5
B 5 255 176543 1497.49 617 601 117.5
B 0 213 79252 669.42 617 601 117.5
C 0 10 296190 2077.41 612 617 142.3
C 15 214 231611 1623.53 612 617 142.3
C 14 254 170494 1193.97 612 617 142.3
D 12 235 2367310 15893.08 606 589 148.9
D 12 17 291458 1953.25 606 589 148.9
D 13 171 58572 389.37 606 589 148.9

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