ASTROSAT CZTI

Data Quality Report

Orbit 32900

Creation date: 2024-06-27T20:43:13.898886
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_007T06_9000004746_32900cztM0_level2.evt modeM0/AS1A11_007T06_9000004746_32900cztM0_level2_quad_clean.evt
Size (bytes)386,559,36059,618,880
Size368.7 MB 56.9 MB
Events in quadrant A2,014,335380,395
Events in quadrant B2,328,386388,954
Events in quadrant C2,333,876388,928
Events in quadrant D4,736,548342,284

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087722
B096261
C096671
D0170811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A432640.092464%
B4326380.878410%
C4326561.294498%
D43263628.368007%

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 6238 4327 0 0 0.00% 0.00%
B 6238 4327 27 27 0.43% 0.62%
C 6238 4327 34 34 0.55% 0.79%
D 6238 4327 370 370 5.93% 8.55%

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 14 63 13169 123.52 514 505 102.5
A 13 254 8316 76.19 514 505 102.5
A 13 6 7896 72.09 514 505 102.5
B 5 172 147583 1515.9 519 506 97.0
B 0 219 34777 353.22 519 506 97.0
B 0 197 27306 276.22 519 506 97.0
C 0 10 189403 1605.92 509 515 117.6
C 14 67 106767 903.35 509 515 117.6
C 1 241 14775 121.24 509 515 117.6
D 8 195 1701544 14006.69 486 476 121.4
D 2 250 389814 3205.83 486 476 121.4
D 12 227 335251 2756.56 486 476 121.4

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