MADOCA & RINEX Archive

♣ Data Archives and Distributes
JAXA archives and distributes GNSS data sets of sufficient accuracy to meet the objectives of a wide range of scientific and engineering applications and studies.
However, JAXA does not guarantee any availability and precision of the data.
JAXA also assumes no responsibility for any damages occurring when a user uses a data.
JAXA may interrupt, stop and terminate product distribution.
The user shall indicate proper credit when the user publishes analyze results from a product.

♣ Reference
For MADOCA products,

Kaori Kawate, Yuki Igarashi, Hideki Yamada, Kyohei Akiyama, Masato Okeya, Hiroshi Takiguchi, Masaya Murata, Toshitaka Sasaki, Saya Matsushita, Shoh Miyoshi, Motoyuki Miyoshi, and Satoshi Kogure 2023. MADOCA: Japanese precise orbit and clock determination tool for GNSS. Advances in Space Research, 71(10), p.3927-3950. https://doi.org/10.1016/j.asr.2023.01.060

For TSF products,

Ikari, S., Akiyama, K., Igarashi, Y. et al. Accurate analytical non-gravitational force model for precise orbit determination of QZS-1, 2, and 4. GPS Solut 27, 190 (2023). https://link.springer.com/article/10.1007/s10291-023-01527-0

♣ Server Information
· Data Access
Japan Aerospace Exploration Agency, Tsukuba, JPN
ftp://mgmds01.tksc.jaxa.jp/

· Structure
Green : File Path
Orange : Files in this directory

MGM-Net RINEX
data/
daily/
yyyy/
ddd/
Daily GNSS observations	ssssddd0.yyo.Z
Daily global broadcast ephemerides	ssssddd0.yyp.Z

MADOCA Products
products/
wwww/
JXF (Final)	Precise satellite orbits and clocks	jxfwwwwd.sp3.Z
	30 sec satellites and station clocks	jxfwwwwd.clk_30s.Z
	Stations Position	jxfwwwwd.snx.Z
	Fractional cycle bias	jxfwwwwd.fcb.Z
	Earth rotation parameters	jxfwwwwd.erp.Z
TSF (Final) (*)	Precise satellite orbits and clocks	tsfwwwwd.sp3.Z
	5 minuites satellites and station clocks	tsfwwwwd.clk_5m.Z

(*)Final products with the enhanced SRP model for QZSS satellites developed by the University of Tokyo.

· File Name

File name variables
d	day of week (0-6)	yy	2-digit year
ddd	3-digit day of year (001-366)	yyyy	4-digit year
mm	2-digit month (01-12)	dd	2-digit day (01-31)
hh	2-digit hour of day (00-23)	ssss	4-character site ID or 4-character ID
wwww	4-digit GPS week

Edit Date:Apr. 1st, 2026